UPDATE 2024/03: Perfect .htaccess file for highspeed and security. You can use it for every WordPress-Website without problems. Highspeed and Security - testet on hundreds of Websites. If you are using a WordPress Multisite, change the last part of this file.

.htaccess

########################################################################
# OPTIMAL .htaccess FILE FOR SPEED AND SECURITY @Version 2.0.9 - 03/2024
# ----------------------------------------------------------------------
# @Author: Andreas Hecht
# @Author URI: https://seoagentur-hamburg.com
# License: GNU General Public License v2 or later
# License URI: http://www.gnu.org/licenses/gpl-2.0.html
########################################################################


# ----------------------------------------------------------------------
# Rewrite from HTTP to HTTPS - if you want to use it, comment it out
# ----------------------------------------------------------------------

#<IfModule mod_rewrite.c>
#RewriteEngine On
#RewriteCond %{HTTPS} !=on
#RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
#</IfModule>

# ----------------------------------------------------------------------
# | Activate CORS                                                  
# ----------------------------------------------------------------------

<IfModule mod_headers.c>
    <FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|font.css|css|js|mjs|gif|png|jpe?g|svg|svgz|ico|webp)$">
        Header set Access-Control-Allow-Origin "*"
    </FilesMatch>
</IfModule>

# -----------------------------------------------------------------------
# | 404 Fix: Block Nuisance Requests for Non-Existent Files - New in 2018  
#   https://perishablepress.com/block-nuisance-requests - @Update 2019
# -----------------------------------------------------------------------

<IfModule mod_alias.c>
	RedirectMatch 403 (?i)\.php\.suspected
	RedirectMatch 403 (?i)apple-app-site-association
	RedirectMatch 403 (?i)/autodiscover/autodiscover.xml
</IfModule>

# ----------------------------------------------------------------------
# | Compressing and Caching - Version 2022 Update javascript modules                |
# ----------------------------------------------------------------------

# Serve resources with far-future expires headers.
#
# (!) If you don't control versioning with filename-based
# cache busting, you should consider lowering the cache times
# to something like one week.
#
# https://httpd.apache.org/docs/current/mod/mod_expires.html

<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                                      "access plus 1 month"

  # CSS
    ExpiresByType text/css                              "access plus 1 year"

  # Data interchange
    ExpiresByType application/atom+xml                  "access plus 1 hour"
    ExpiresByType application/rdf+xml                   "access plus 1 hour"
    ExpiresByType application/rss+xml                   "access plus 1 hour"

    ExpiresByType application/json                      "access plus 0 seconds"
    ExpiresByType application/ld+json                   "access plus 0 seconds"
    ExpiresByType application/schema+json               "access plus 0 seconds"
    ExpiresByType application/vnd.geo+json              "access plus 0 seconds"
    ExpiresByType application/xml                       "access plus 0 seconds"
    ExpiresByType text/xml                              "access plus 0 seconds"

  # Favicon (cannot be renamed!) and cursor images
    ExpiresByType image/vnd.microsoft.icon              "access plus 1 week"
    ExpiresByType image/x-icon                          "access plus 1 week"

  # HTML - No Caching
    ExpiresByType text/html                             "access plus 0 seconds"

  # JavaScript
    ExpiresByType application/javascript                "access plus 1 year"
    ExpiresByType application/x-javascript              "access plus 1 year"
    ExpiresByType text/javascript                       "access plus 1 year"

  # Manifest files
    ExpiresByType application/manifest+json             "access plus 1 week"
    ExpiresByType application/x-web-app-manifest+json   "access plus 0 seconds"
    ExpiresByType text/cache-manifest                   "access plus 0 seconds"
    
# Update 2020: Google recommendation: cache duration increased to 1 year
# @see: https://web.dev/uses-long-cache-ttl/    

  # Media files
    ExpiresByType audio/ogg                             "access plus 1 year"
    ExpiresByType image/bmp                             "access plus 1 year"
    ExpiresByType image/gif                             "access plus 1 year"
    ExpiresByType image/jpeg                            "access plus 1 year"
    ExpiresByType image/png                             "access plus 1 year"
    ExpiresByType image/svg+xml                         "access plus 1 year"
    ExpiresByType image/webp                            "access plus 1 year"
    ExpiresByType video/mp4                             "access plus 1 year"
    ExpiresByType video/ogg                             "access plus 1 year"
    ExpiresByType video/webm                            "access plus 1 year"

  # Web fonts

    # Embedded OpenType (EOT)
    ExpiresByType application/vnd.ms-fontobject         "access plus 1 year"
    ExpiresByType font/eot                              "access plus 1 year"

    # OpenType
    ExpiresByType font/opentype                         "access plus 1 year"

    # TrueType
    ExpiresByType application/x-font-ttf                "access plus 1 year"

    # Web Open Font Format (WOFF) 1.0
    ExpiresByType application/font-woff                 "access plus 1 year"
    ExpiresByType application/x-font-woff               "access plus 1 year"
    ExpiresByType font/woff                             "access plus 1 year"

    # Web Open Font Format (WOFF) 2.0
    ExpiresByType application/font-woff2                "access plus 1 year"

  # Other
    ExpiresByType text/x-cross-domain-policy            "access plus 1 week"
</IfModule>

<IfModule mod_deflate.c>
# Insert filters / compress text, html, javascript, css, xml:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/vtt 
AddOutputFilterByType DEFLATE text/x-component
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/js
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE application/atom+xml 
AddOutputFilterByType DEFLATE application/json
AddOutputFilterByType DEFLATE application/ld+json 
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject 
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/font-woff2
AddOutputFilterByType DEFLATE application/x-font-woff
AddOutputFilterByType DEFLATE application/x-web-app-manifest+json font/woff
AddOutputFilterByType DEFLATE font/woff 
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon 

# Exception: Images
SetEnvIfNoCase REQUEST_URI \.(?:gif|jpg|jpeg|png|svg)$ no-gzip dont-vary

# Drop problematic browsers
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary
</IfModule>

#Alternative caching using Apache's "mod_headers", if it's installed.
#Caching of common files - ENABLED
<IfModule mod_headers.c>
<FilesMatch "\.(ico|pdf|flv|swf|js|mjs|css|gif|png|jpg|jpeg|txt|woff2|woff)$">
Header set Cache-Control "max-age=31536000, public"
</FilesMatch>
</IfModule>

<IfModule mod_headers.c>
  <FilesMatch "\.(js|mjs|css|xml|gz)$">
    Header append Vary Accept-Encoding
  </FilesMatch>
</IfModule>

# Set Keep Alive Header
<IfModule mod_headers.c>
    Header set Connection keep-alive
</IfModule>

# If your server don't support ETags deactivate with "None" (and remove header)
<IfModule mod_expires.c> 
  <IfModule mod_headers.c> 
    Header unset ETag 
  </IfModule> 
  FileETag None 
</IfModule>

<IfModule mod_headers.c>
<FilesMatch ".(js|mjs|css|xml|gz|html|woff|woff2|ttf)$">
Header append Vary: Accept-Encoding
</FilesMatch>
</IfModule>

# ----------------------------------------------------------------------
# | 8G Firewall for Security - Do not change this part @Update 03/2024
# ----------------------------------------------------------------------

# 8G FIREWALL v1.3 20240222
# https://perishablepress.com/8g-firewall/

# 8G:[CORE]
ServerSignature Off
Options -Indexes
RewriteEngine On
RewriteBase /

# 8G:[QUERY STRING]
<IfModule mod_rewrite.c>

	RewriteCond %{QUERY_STRING} ^(%2d|-)[^=]+$ [NC,OR]
	RewriteCond %{QUERY_STRING} ([a-z0-9]{4000,}) [NC,OR]
	RewriteCond %{QUERY_STRING} (/|%2f)(:|%3a)(/|%2f) [NC,OR]
	RewriteCond %{QUERY_STRING} (etc/(hosts|motd|shadow)) [NC,OR]
	RewriteCond %{QUERY_STRING} (order(\s|%20)by(\s|%20)1--) [NC,OR]
	RewriteCond %{QUERY_STRING} (/|%2f)(\*|%2a)(\*|%2a)(/|%2f) [NC,OR]
	RewriteCond %{QUERY_STRING} (`|<|>|\^|\|\\|0x00|%00|%0d%0a) [NC,OR]
	RewriteCond %{QUERY_STRING} (f?ckfinder|f?ckeditor|fullclick) [NC,OR]
	RewriteCond %{QUERY_STRING} ((.*)header:|(.*)set-cookie:(.*)=) [NC,OR]
	RewriteCond %{QUERY_STRING} (localhost|127(\.|%2e)0(\.|%2e)0(\.|%2e)1) [NC,OR]
	RewriteCond %{QUERY_STRING} (cmd|command)(=|%3d)(chdir|mkdir)(.*)(x20) [NC,OR]
	RewriteCond %{QUERY_STRING} (globals|mosconfig([a-z_]{1,22})|request)(=|\[) [NC,OR]
	RewriteCond %{QUERY_STRING} (/|%2f)((wp-)?config)((\.|%2e)inc)?((\.|%2e)php) [NC,OR]
	RewriteCond %{QUERY_STRING} (thumbs?(_editor|open)?|tim(thumbs?)?)((\.|%2e)php) [NC,OR]
	RewriteCond %{QUERY_STRING} (absolute_|base|root_)(dir|path)(=|%3d)(ftp|https?) [NC,OR]
	RewriteCond %{QUERY_STRING} (s)?(ftp|inurl|php)(s)?(:(/|%2f|%u2215)(/|%2f|%u2215)) [NC,OR]
	RewriteCond %{QUERY_STRING} (\.|20)(get|the)(_|%5f)(permalink|posts_page_url)(\(|%28) [NC,OR]
	RewriteCond %{QUERY_STRING} ((boot|win)((\.|%2e)ini)|etc(/|%2f)passwd|self(/|%2f)environ) [NC,OR]
	RewriteCond %{QUERY_STRING} (((/|%2f){3,3})|((\.|%2e){3,3})|((\.|%2e){2,2})(/|%2f|%u2215)) [NC,OR]
	RewriteCond %{QUERY_STRING} (benchmark|char|exec|fopen|function|html)(.*)(\(|%28)(.*)(\)|%29) [NC,OR]
	RewriteCond %{QUERY_STRING} (php)([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}) [NC,OR]
	RewriteCond %{QUERY_STRING} (e|%65|%45)(v|%76|%56)(a|%61|%31)(l|%6c|%4c)(.*)(\(|%28)(.*)(\)|%29) [NC,OR]
	RewriteCond %{QUERY_STRING} (/|%2f)(=|%3d|$&|_mm|cgi(\.|-)|inurl(:|%3a)(/|%2f)|(mod|path)(=|%3d)(\.|%2e)) [NC,OR]
	RewriteCond %{QUERY_STRING} (<|%3c)(.*)(e|%65|%45)(m|%6d|%4d)(b|%62|%42)(e|%65|%45)(d|%64|%44)(.*)(>|%3e) [NC,OR]
	RewriteCond %{QUERY_STRING} (<|%3c)(.*)(i|%69|%49)(f|%66|%46)(r|%72|%52)(a|%61|%41)(m|%6d|%4d)(e|%65|%45)(.*)(>|%3e) [NC,OR]
	RewriteCond %{QUERY_STRING} (<|%3c)(.*)(o|%4f|%6f)(b|%62|%42)(j|%4a|%6a)(e|%65|%45)(c|%63|%43)(t|%74|%54)(.*)(>|%3e) [NC,OR]
	RewriteCond %{QUERY_STRING} (<|%3c)(.*)(s|%73|%53)(c|%63|%43)(r|%72|%52)(i|%69|%49)(p|%70|%50)(t|%74|%54)(.*)(>|%3e) [NC,OR]
	RewriteCond %{QUERY_STRING} (\+|%2b|%20)(d|%64|%44)(e|%65|%45)(l|%6c|%4c)(e|%65|%45)(t|%74|%54)(e|%65|%45)(\+|%2b|%20) [NC,OR]
	RewriteCond %{QUERY_STRING} (\+|%2b|%20)(i|%69|%49)(n|%6e|%4e)(s|%73|%53)(e|%65|%45)(r|%72|%52)(t|%74|%54)(\+|%2b|%20) [NC,OR]
	RewriteCond %{QUERY_STRING} (\+|%2b|%20)(s|%73|%53)(e|%65|%45)(l|%6c|%4c)(e|%65|%45)(c|%63|%43)(t|%74|%54)(\+|%2b|%20) [NC,OR]
	RewriteCond %{QUERY_STRING} (\+|%2b|%20)(u|%75|%55)(p|%70|%50)(d|%64|%44)(a|%61|%41)(t|%74|%54)(e|%65|%45)(\+|%2b|%20) [NC,OR]
	RewriteCond %{QUERY_STRING} (\\x00|(\"|%22|\'|%27)?0(\"|%22|\'|%27)?(=|%3d)(\"|%22|\'|%27)?0|cast(\(|%28)0x|or%201(=|%3d)1) [NC,OR]
	RewriteCond %{QUERY_STRING} (g|%67|%47)(l|%6c|%4c)(o|%6f|%4f)(b|%62|%42)(a|%61|%41)(l|%6c|%4c)(s|%73|%53)(=|\[|%[0-9A-Z]{0,2}) [NC,OR]
	RewriteCond %{QUERY_STRING} (_|%5f)(r|%72|%52)(e|%65|%45)(q|%71|%51)(u|%75|%55)(e|%65|%45)(s|%73|%53)(t|%74|%54)(=|\[|%[0-9A-Z]{2,}) [NC,OR]
	RewriteCond %{QUERY_STRING} (j|%6a|%4a)(a|%61|%41)(v|%76|%56)(a|%61|%31)(s|%73|%53)(c|%63|%43)(r|%72|%52)(i|%69|%49)(p|%70|%50)(t|%74|%54)(:|%3a)(.*)(;|%3b|\)|%29) [NC,OR]
	RewriteCond %{QUERY_STRING} (b|%62|%42)(a|%61|%41)(s|%73|%53)(e|%65|%45)(6|%36)(4|%34)(_|%5f)(e|%65|%45|d|%64|%44)(e|%65|%45|n|%6e|%4e)(c|%63|%43)(o|%6f|%4f)(d|%64|%44)(e|%65|%45)(.*)(\()(.*)(\)) [NC,OR]
	RewriteCond %{QUERY_STRING} (@copy|\$_(files|get|post)|allow_url_(fopen|include)|auto_prepend_file|blexbot|browsersploit|call_user_func_array|(php|web)shell|curl(_exec|test)|disable_functions?|document_root) [NC,OR]
	RewriteCond %{QUERY_STRING} (elastix|encodeuricom|exploit|fclose|fgets|file_put_contents|fputs|fsbuff|fsockopen|gethostbyname|ghost|grablogin|hmei7|hubs_post-cta|input_file|invokefunction|(\b)load_file|open_basedir|outfile|p3dlite) [NC,OR]
	RewriteCond %{QUERY_STRING} (pass(=|%3d)shell|passthru|phpinfo|phpshells|popen|proc_open|quickbrute|remoteview|root_path|safe_mode|shell_exec|site((.){0,2})copier|sp_executesql|sux0r|trojan|udtudt|user_func_array|wget|wp_insert_user|xertive) [NC,OR]
	RewriteCond %{QUERY_STRING} (;|<|>|\'|\"|\)|%0a|%0d|%22|%27|%3c|%3e|%00)(.*)(/\*|alter|base64|benchmark|cast|concat|convert|create|encode|declare|delay|delete|drop|hex|insert|load|md5|null|replace|request|script|select|set|sleep|truncate|unhex|update) [NC,OR]
	RewriteCond %{QUERY_STRING} ((\+|%2b)(concat|delete|get|select|union)(\+|%2b)) [NC,OR]
	RewriteCond %{QUERY_STRING} (union)(.*)(select)(.*)(\(|%28) [NC,OR]
	RewriteCond %{QUERY_STRING} (concat|eval)(.*)(\(|%28) [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_QUERY_STRING:%1___%2___%3]

</IfModule>

# 8G:[REQUEST URI]
<IfModule mod_rewrite.c>

	RewriteCond %{REQUEST_URI} (,,,) [NC,OR]
	RewriteCond %{REQUEST_URI} (-------) [NC,OR]
	RewriteCond %{REQUEST_URI} (\^|`|<|>|\\|\|) [NC,OR]
	RewriteCond %{REQUEST_URI} ([a-z0-9]{2000,}) [NC,OR]
	RewriteCond %{REQUEST_URI} (=?\\(\'|%27)/?)(\.) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(\*|\"|\'|\.|,|&|&amp;?)/?$ [NC,OR]
	RewriteCond %{REQUEST_URI} (\.)(php)(\()?([0-9]+)(\))?(/)?$ [NC,OR]
	RewriteCond %{REQUEST_URI} /((.*)header:|(.*)set-cookie:(.*)=) [NC,OR]
	RewriteCond %{REQUEST_URI} (\.(s?ftp-?)config|(s?ftp-?)config\.) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(f?ckfinder|fck/|f?ckeditor|fullclick) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)((force-)?download|framework/main)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (\{0\}|\"?0\"?=\"?0|\(/\(|\.\.\.|\+\+\+|\\\") [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(vbull(etin)?|boards|vbforum|vbweb|webvb)(/)? [NC,OR]
	RewriteCond %{REQUEST_URI} (\.|20)(get|the)(_)(permalink|posts_page_url)(\() [NC,OR]
	RewriteCond %{REQUEST_URI} (///|\?\?|/&&|/\*(.*)\*/|/:/|\\\\|0x00|%00|%0d%0a) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(cgi_?)?alfa(_?cgiapi|_?data|_?v[0-9]+)?(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (thumbs?(_editor|open)?|tim(thumbs?)?)((\.|%2e)php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)((boot)?_?admin(er|istrator|s)(_events)?)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/%7e)(root|ftp|bin|nobody|named|guest|logs|sshd)(/) [NC,OR]
	RewriteCond %{REQUEST_URI} (archive|backup|db|master|sql|wp|www|wwwroot)\.(gz|zip) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(\.?mad|alpha|c99|php|web)?sh(3|e)ll([0-9]+|\w)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(admin-?|file-?)(upload)(bg|_?file|ify|svu|ye)?(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(etc|var)(/)(hidden|secret|shadow|ninja|passwd|tmp)(/)?$ [NC,OR]
	RewriteCond %{REQUEST_URI} (s)?(ftp|http|inurl|php)(s)?(:(/|%2f|%u2215)(/|%2f|%u2215)) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(=|\$&?|&?(pws|rk)=0|_mm|_vti_|cgi(\.|-)?|(=|/|;|,)nt\.) [NC,OR]
	RewriteCond %{REQUEST_URI} (\.)(ds_store|htaccess|htpasswd|init?|mysql-select-db)(/)?$ [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(bin)(/)(cc|chmod|chsh|cpp|echo|id|kill|mail|nasm|perl|ping|ps|python|tclsh)(/)?$ [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(::[0-9999]|%3a%3a[0-9999]|127\.0\.0\.1|ccx|localhost|makefile|pingserver|wwwroot)(/)? [NC,OR]
	RewriteCond %{REQUEST_URI} ^(/)(123|backup|bak|beta|bkp|default|demo|dev(new|old)?|home|new-?site|null|old|old_files|old1)(/)?$ [NC,OR]
	RewriteCond %{REQUEST_URI} (/)?j((\s)+)?a((\s)+)?v((\s)+)?a((\s)+)?s((\s)+)?c((\s)+)?r((\s)+)?i((\s)+)?p((\s)+)?t((\s)+)?(%3a|:) [NC,OR]
	RewriteCond %{REQUEST_URI} ^(/)(old-?site(back)?|old(web)?site(here)?|sites?|staging|undefined|wordpress([0-9]+)|wordpress-old)(/)?$ [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(filemanager|htdocs|httpdocs|https?|login|mailman|mailto|msoffice|undefined|usage|var|vhosts|webmaster|www)(/) [NC,OR]
	RewriteCond %{REQUEST_URI} (\(null\)|\{\$itemURL\}|cast\(0x|echo(.*)kae|etc/passwd|eval\(|null(.*)null|open_basedir|self/environ|\+union\+all\+select) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(db-?|j-?|my(sql)?-?|setup-?|web-?|wp-?)?(admin-?)?(setup-?)?(conf\b|conf(ig)?)(uration)?(\.?bak|\.inc)?(\.inc|\.old|\.php|\.txt) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)((.*)crlf-?injection|(.*)xss-?protection|__(inc|jsc)|administrator|author-panel|cgi-bin|database|downloader|(db|mysql)-?admin)(/) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(haders|head|hello|helpear|incahe|includes?|indo(sec)?|infos?|install|ioptimizes?|jmail|js|king|kiss|kodox|kro|legion|libsoft)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(awstats|document_root|dologin\.action|error.log|extension/ext|htaccess\.|lib/php|listinfo|phpunit/php|remoteview|server/php|www\.root\.) [NC,OR]
	RewriteCond %{REQUEST_URI} (base64_(en|de)code|benchmark|curl_exec|e?chr|eval|function|fwrite|(f|p)open|html|leak|passthru|p?fsockopen|phpinfo)(.*)(\(|%28)(.*)(\)|%29) [NC,OR]
	RewriteCond %{REQUEST_URI} (posix_(kill|mkfifo|setpgid|setsid|setuid)|(child|proc)_(close|get_status|nice|open|terminate)|(shell_)?exec|system)(.*)(\(|%28)(.*)(\)|%29) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)((c99|php|web)?shell|crossdomain|fileditor|locus7|nstview|php(get|remoteview|writer)|r57|remview|sshphp|storm7|webadmin)(.*)(\.|%2e|\(|%28) [NC,OR]
	RewriteCond %{REQUEST_URI} /((wp-)((201\d|202\d|[0-9]{2})|ad|admin(fx|rss|setup)|booking|confirm|crons|data|file|mail|one|plugins?|readindex|reset|setups?|story))(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(^$|-|\!|\w|\.(.*)|100|123|([^iI])?ndex|index\.php/index|3xp|777|7yn|90sec|99|active|aill|ajs\.delivery|al277|alexuse?|ali|allwrite)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(analyser|apache|apikey|apismtp|authenticat(e|ing)|autoload_classmap|backup(_index)?|bakup|bkht|black|bogel|bookmark|bypass|cachee?)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(clean|cm(d|s)|con|connector\.minimal|contexmini|contral|curl(test)?|data(base)?|db|db-cache|db-safe-mode|defau11|defau1t|dompdf|dst)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(elements|emails?|error.log|ecscache|edit-form|eval-stdin|export|evil|fbrrchive|filemga|filenetworks?|f0x|gank(\.php)?|gass|gel|guide)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(logo_img|lufix|mage|marg|mass|mide|moon|mssqli|mybak|myshe|mysql|mytag_js?|nasgor|newfile|news|nf_?tracking|nginx|ngoi|ohayo|old-?index)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(olux|owl|pekok|petx|php-?info|phpping|popup-pomo|priv|r3x|radio|rahma|randominit|readindex|readmy|reads|repair-?bak|robot(s\.txt)?|root)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(router|savepng|semayan|shell|shootme|sky|socket(c|i|iasrgasf)ontrol|sql(bak|_?dump)?|support|sym403|sys|system_log|test|tmp-?(uploads)?)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)(traffic-advice|u2p|udd|ukauka|up__uzegp|up14|upa?|upxx?|vega|vip|vu(ln)?(\w)?|webroot|weki|wikindex|wordpress|wp_logns?|wp_wrong_datlib)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (/)((wp-?)?install(ation)?|wp(3|4|5|6)|wpfootes|wpzip|ws0|wsdl|wso(\w)?|www|(uploads|wp-admin)?xleet(-shell)?|xmlsrpc|xup|xxu|xxx|zibi|zipy)(\.php) [NC,OR]
	RewriteCond %{REQUEST_URI} (bkv74|cachedsimilar|core-stab|crgrvnkb|ctivrc|deadcode|deathshop|dkiz|e7xue|eqxafaj90zir|exploits|ffmkpcal|filellli7|(fox|sid)wso|gel4y|goog1es|gvqqpinc) [NC,OR]
	RewriteCond %{REQUEST_URI} (@md5|00.temp00|0byte|0d4y|0day|0xor|wso1337|1h6j5|3xp|40dd1d|4price|70bex?|a57bze893|abbrevsprl|abruzi|adminer|aqbmkwwx|archivarix|backdoor|beez5|bgvzc29) [NC,OR]
	RewriteCond %{REQUEST_URI} (handler_to_code|hax(0|o)r|hmei7|hnap1|home_url=|ibqyiove|icxbsx|indoxploi|jahat|jijle3|kcrew|keywordspy|laobiao|lock360|longdog|marijuan|mod_(aratic|ariimag)) [NC,OR]
	RewriteCond %{REQUEST_URI} (mobiquo|muiebl|nessus|osbxamip|phpunit|priv8|qcmpecgy|r3vn330|racrew|raiz0|reportserver|r00t|respectmus|rom2823|roseleif|sh3ll|site((.){0,2})copier|sqlpatch|sux0r) [NC,OR]
	RewriteCond %{REQUEST_URI} (sym403|telerik|uddatasql|utchiha|visualfrontend|w0rm|wangdafa|wpyii2|wsoyanzo|x5cv|xattack|xbaner|xertive|xiaolei|xltavrat|xorz|xsamxad|xsvip|xxxs?s?|zabbix|zebda) [NC,OR]
	RewriteCond %{REQUEST_URI} (\.)(7z|ab4|ace|afm|alfa|as(h|m)x?|aspx?|aws|axd|bash|ba?k?|bat|bin|bz2|cfg|cfml?|cgi|cms|conf\b|config|ctl|dat|db|dist|dll|eml|eng(ine)?|env|et2|exe|fec|fla|git(ignore)?)$ [NC,OR]
	RewriteCond %{REQUEST_URI} (\.)(hg|idea|inc|index|ini|inv|jar|jspa?|lib|local|log|lqd|make|mbf|mdb|mmw|mny|mod(ule)?|msi|old|one|orig|out|passwd|pdb|php\.(php|suspect(ed)?)|php([^\/])|phtml?|pl|profiles?)$ [NC,OR]
	RewriteCond %{REQUEST_URI} (\.)(psd|pst|ptdb|production|pwd|py|qbb|qdf|rar|rdf|remote|save|sdb|sql|sh|soa|svn|swf|swl|swo|swp|stx|tar|tax|tgz?|theme|tls|tmb|tmd|wok|wow|xsd|xtmpl|xz|ya?ml|za|zlib)$ [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_REQUEST_URI:%1___%2___%3]

</IfModule>

# 8G:[USER AGENT]
<IfModule mod_rewrite.c>

	RewriteCond %{HTTP_USER_AGENT} ([a-z0-9]{2000,}) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (&lt;|%0a|%0d|%27|%3c|%3e|%00|0x00|\\\x22) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (ahrefs|archiver|curl|libwww-perl|pycurl|scan) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (oppo\sa33|(c99|php|web)shell|site((.){0,2})copier) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (base64_decode|bin/bash|disconnect|eval|unserializ) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (acapbot|acoonbot|alexibot|asterias|attackbot|awario|backdor|becomebot|binlar|blackwidow|blekkobot|blex|blowfish|bullseye|bunnys|butterfly|careerbot|casper) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (checkpriv|cheesebot|cherrypick|chinaclaw|choppy|clshttp|cmsworld|copernic|copyrightcheck|cosmos|crescent|datacha|(\b)demon(\b)|diavol|discobot|dittospyder) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (dotbot|dotnetdotcom|dumbot|econtext|emailcollector|emailsiphon|emailwolf|eolasbot|eventures|extract|eyenetie|feedfinder|flaming|flashget|flicky|foobot|fuck) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (g00g1e|getright|gigabot|go-ahead-got|gozilla|grabnet|grafula|harvest|heritrix|httracks?|icarus6j|jetbot|jetcar|jikespider|kmccrew|leechftp|libweb|liebaofast) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (linkscan|linkwalker|loader|lwp-download|majestic|masscan|miner|mechanize|mj12bot|morfeus|moveoverbot|netmechanic|netspider|nicerspro|nikto|ninja|nominet|nutch) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (octopus|pagegrabber|petalbot|planetwork|postrank|proximic|purebot|queryn|queryseeker|radian6|radiation|realdownload|remoteview|rogerbot|scan|scooter|seekerspid) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (semalt|siclab|sindice|sistrix|sitebot|siteexplorer|sitesnagger|skygrid|smartdownload|snoopy|sosospider|spankbot|spbot|sqlmap|stackrambler|stripper|sucker|surftbot) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (sux0r|suzukacz|suzuran|takeout|teleport|telesoft|true_robots|turingos|turnit|vampire|vikspider|voideye|webleacher|webreaper|webstripper|webvac|webviewer|webwhacker) [NC,OR]
	RewriteCond %{HTTP_USER_AGENT} (winhttp|wwwoffle|woxbot|xaldon|xxxyy|yamanalab|yioopbot|youda|zeus|zmeu|zune|zyborg) [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_USER_AGENT:%1]

</IfModule>

# 8G:[REMOTE HOST]
<IfModule mod_rewrite.c>

	RewriteCond %{REMOTE_HOST} (163data|amazonaws|colocrossing|crimea|g00g1e|justhost|kanagawa|loopia|masterhost|onlinehome|poneytel|sprintdatacenter|reverse.softlayer|safenet|ttnet|woodpecker|wowrack) [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_REMOTE_HOST:%1]

</IfModule>

# 8G:[HTTP REFERRER]
<IfModule mod_rewrite.c>

	RewriteCond %{HTTP_REFERER} (order(\s|%20)by(\s|%20)1--) [NC,OR]
	RewriteCond %{HTTP_REFERER} (@unlink|assert\(|print_r\(|x00|xbshell) [NC,OR]
	RewriteCond %{HTTP_REFERER} (100dollars|best-seo|blue\spill|cocaine|ejaculat|erectile|erections|hoodia|huronriveracres|impotence|levitra|libido|lipitor|mopub\.com|phentermin) [NC,OR]
	RewriteCond %{HTTP_REFERER} (pornhelm|pro[sz]ac|sandyauer|semalt\.com|social-buttions|todaperfeita|tramadol|troyhamby|ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo) [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_HTTP_REFERRER:%1]

</IfModule>

# 8G:[HTTP COOKIE]
<IfModule mod_rewrite.c>

	RewriteCond %{HTTP_COOKIE} (<|>|\'|%0A|%0D|%27|%3C|%3E|%00) [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_HTTP_COOKIE:%1]

</IfModule>

# 8G:[REQUEST METHOD]
<IfModule mod_rewrite.c>

	RewriteCond %{REQUEST_METHOD} ^(connect|debug|move|trace|track) [NC]

	RewriteRule .* - [F]

	# RewriteRule .* /nG_log.php?log [END,NE,E=nG_REQUEST_METHOD:%1]

</IfModule>

# ----------------------------------------------------------------------
#   Block WordPress files from outside access
# ----------------------------------------------------------------------	

# No access to the install.php
<files install.php>
Order allow,deny
Deny from all
</files>
 
# No access to the wp-config.php 
<files wp-config.php>
Order allow,deny
Deny from all
</files>
 
# No access to the readme.html
<files readme.html>
 Order Allow,Deny
 Deny from all
 Satisfy all
</Files>
 
# No access to the liesmich.html for DE Edition
<Files liesmich.html>
 Order Allow,Deny
 Deny from all
 Satisfy all
</Files>
 
# No error log access 
<files error_log>
Order allow,deny
Deny from all
</files>

#No access to the .htaccess und .htpasswd
<FilesMatch "(\.htaccess|\.htpasswd)">
  Order deny,allow
  Deny from all
</FilesMatch>

# Block access to includes folder
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^wp-admin/includes/ - [F,L]
RewriteRule !^wp-includes/ - [S=3]
RewriteRule ^wp-includes/[^/]+\.php$ - [F,L]
RewriteRule ^wp-includes/js/tinymce/langs/.+\.php - [F,L]
RewriteRule ^wp-includes/theme-compat/ - [F,L]
</IfModule>

# ----------------------------------------------------------------------
# | Blocking the »ReallyLongRequest« Bandit - New in 2018  
#   https://perishablepress.com/blocking-reallylongrequest-bandit/
# ----------------------------------------------------------------------

<IfModule mod_rewrite.c>
    RewriteCond %{REQUEST_METHOD} .* [NC]
    RewriteCond %{THE_REQUEST}  (YesThisIsAReallyLongRequest|ScanningForResearchPurpose) [NC,OR]
    RewriteCond %{QUERY_STRING} (YesThisIsAReallyLongRequest|ScanningForResearchPurpose) [NC]
    RewriteRule .* - [F,L]
</IfModule>

# --------------------------------------------------------------------------------------------
#   Ultimate hotlink protection - IMPORTANT: Change »?domain\« in line 361 to your domain name
#   Example: ?andreas-hecht\ ### if you do not use https, change https in line 361 to http
# --------------------------------------------------------------------------------------------


#<IfModule mod_rewrite.c>
# RewriteEngine on
# RewriteCond %{HTTP_REFERER}     !^$
# RewriteCond %{REQUEST_FILENAME} -f
# RewriteCond %{REQUEST_FILENAME} \.(gif|jpe?g?|png)$           [NC]
# RewriteCond %{HTTP_REFERER}     !^https?://([^.]+\.)?domain\. [NC]
# RewriteRule \.(gif|jpe?g?|png)$                             - [F,NC,L]
#</ifModule>

# ----------------------------------------------------------------------
#   Block WordPress Author Scans
# ----------------------------------------------------------------------

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} ^/wp-json/wp/v2/users [OR]
RewriteCond %{QUERY_STRING} (author=\d+) [NC]
RewriteRule ^ – [NC,F,L]
</ifModule>

# ----------------------------------------------------------------------
#   Protect your WordPress Login with HTTP Authentification
# ----------------------------------------------------------------------

# If you want to use it, comment it out and set your path to .htpasswd
#<Files wp-login.php>
#AuthName "Admin-Bereich"
#AuthType Basic
#AuthUserFile /usr/local/www/apache24/your-path/your-domain.com/.htpasswd 
#require valid-user
#</Files>

# ----------------------------------------------------------------------
#   Switch off the security risk XML-RPC interface completely
# ----------------------------------------------------------------------

### @see https://digwp.com/2009/06/xmlrpc-php-security/

<Files xmlrpc.php>
 Order Deny,Allow
 Deny from all
</Files>


# -----------------------------------------------------------------------------
#  HTTP SECURITY HEADER | Test on: https://securityheaders.com | UPDATE 05/2022
# -----------------------------------------------------------------------------

### @see https://scotthelme.co.uk/hardening-your-http-response-headers
### UPDATE 2022

## No-Referrer-Header
<IfModule mod_headers.c>
    Header set Referrer-Policy "no-referrer"
</IfModule>

## Strict Origin when cross origin Header
#@see https://scotthelme.co.uk/a-new-security-header-referrer-policy/
<IfModule mod_headers.c>
Header set Referrer-Policy "strict-origin-when-cross-origin"
</IfModule>

## X-FRAME-OPTIONS-Header
<IfModule mod_headers.c>
    Header set X-Frame-Options "sameorigin"
</IfModule>

## X-XSS-PROTECTION-Header
<IfModule mod_headers.c>
    Header set X-XSS-Protection "1; mode=block"
</IfModule>

## X-Content-Type-Options-Header
<IfModule mod_headers.c>
    Header set X-Content-Type-Options "nosniff"
</IfModule>

## Strict-Transport-Security-Header - for HTTPS
<IfModule mod_headers.c>
   Header set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
</IfModule>


# Upgrade Insecure Requests to prevent mixed content
<ifModule mod_headers.c>
  Header always set Content-Security-Policy "upgrade-insecure-requests"
</IfModule>

# Permissions Policy is a new header that allows a site to control which features and APIs can be used in the browser.
## Tutorial: https://github.com/w3c/webappsec-permissions-policy/blob/main/permissions-policy-explainer.md
<IfModule mod_headers.c>
Header always set Permissions-Policy "geolocation=(), midi=(),sync-xhr=(),accelerometer=(), gyroscope=(), magnetometer=(), camera=(), fullscreen=(self)"
</IfModule>

# ----------------------------------------------------------------------
# The original WordPress Rewrite Rules - Do not change anything here, 
# except you are using a WordPress Multisite
# ----------------------------------------------------------------------

# BEGIN WordPress.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

.......... Suggestion to add woff2 font type to mod_deflate (GZIP).............. AddOutputFilterByType DEFLATE font/woff2

WOFF2 is already a compressed format, so what's the point of gzipping it ... bad suggestion ;-)

yes, thanks for that., i will modify it, but expire header should add to woff2 because the author forget to add expire header to woff2

I would like to suggest to replace the 7G security by 8G security.
Stable version released last month
https://perishablepress.com/8g-firewall/

X-XSS-Protection (Line 547) should be removed because of vulnerabilities see: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-XSS-Protection

RewriteCond %{REQUEST_URI} ^/wp-json/wp/v2/users [OR] here

Could it be better to handle in another place?
Also, any known conflicts beside AJAX requests while using the admin pages? (at least with "pretty URLs")

Example from WordPress Developer Resources: Require Authentication for All Requests
--it's also possible to check if the request URI is /wp-json/wp/v2/users, in this scenario I've tested also with add_action('init', 'my_callback') and it was possible to block/redirect without the htaccess

This can also be useful Why is the REST API not verifying the incoming Origin header? Does this expose my site to CSRF attacks?

---

Thanks

Thanks for sharing it.I needed help with my dissertation and decided to try https://canadianwritings.com/ The experience was fantastic. The writer provided a well-researched and well-written dissertation that exceeded my expectations. The customer support team was always available to assist me. I highly recommend Canadian Writings for any academic writing needs.