List of email spy pixels blocked by Simplify Gmail as of Feb 28, 2021

simplify_tracker_blocking.js

const trackers = {
  "365offers.trade": "trk.365offers.trade",
  "Absolutesoftware-email.com": "click.absolutesoftware-email.com\\/open.aspx",
  "ActiveCampaign.com": "lt.php(.*)\\?l=open",
  "ActionKit.com": "track.sp.actionkit.com\\/q\\/",
  "Acoustic.com": "mkt\\d{4,5}.com/open",
  "Adobe.com": [
    "demdex.net",
    "t.info.adobesystems.com",
    "toutapp.com",
    "\\/trk\\?t=",
    "sparkpostmail2.com",
  ],
  "Active.com": "click.email.active.com\\/q",
  "AgileCRM.com": "agle2.me\\/open",
  "Airbnb.com": "email.airbnb.com\\/wf\\/open",
  "AirMiles.ca": "email.airmiles.ca\\/O",
  "Alaska Airlines": [
    "click.points-mail.com\\/open",
    "sjv.io\\/i\\/",
    "gqco.net\\/i\\/",
  ],
  "Amazon.com": [
    "awstrack.me",
    "aws-track-email-open",
    "\\/gp\\/r.html",
    "\\/gp\\/forum\\/email\\/tracking",
    "amazonappservices.com\\/trk",
    "amazonappservices.com\\/r\\/",
    "awscloud.com\\/trk",
  ],
  "Apple.com": [
    "apple.com\\/report\\/2\\/its_mail_sf",
    "apple_email_link\\/spacer",
  ],
  "Appriver.com": "appriver.com\\/e1t\\/o\\/",
  "Apptivo.com": "apptivo.com",
  "Asus.com": "emditpison.asus.com",
  "TheAtlantic.com": "links.e.theatlantic.com\\/open\\/log\\/",
  "AWeber.com": "openrate.aweber.com",
  "Axios.com": "link.axios.com\\/img\\/.*.gif",
  "BananaTag.com": "bl-1.com",
  "Blueshift.com": [
    "blueshiftmail.com\\/wf\\/open",
    "getblueshift.com\\/track",
  ],
  "Bombcom.com": "bixel.io",
  "BoomerangGmail.com": "mailstat.us\\/tr",
  "Boots.com": "boots.com\\/rts\\/open.aspx",
  "Boxbe.com": "boxbe.com\\/stfopen",
  "Browserstack.com": "browserstack.com\\/images\\/mail\\/track-open",
  "BuzzStream.com": "tx.buzzstream.com",
  "CampaignMonitor.com": "cmail(d{1,2}).com\\/t\\/",
  "CanaryMail.io": "canarymail.io(:\\d+)?\\/track",
  "CirrusInsight.com": ["tracking.cirrusinsight.com", "pardot.com\\/r\\/"],
  "Clio.com": "market.clio.com\\/trk",
  "Close.io": ["close.(io|com)\\/email_opened", "dripemail2"],
  "Cloudhq.io": ["cloudhq.io\\/mail_track", "cloudhq-mkt\\d.net/mail_track"],
  "Coda.io": "coda.io\\/logging\\/ping",
  "CodePen.io": "mailer.codepen.io\\/q",
  "ConneQuityMailer.com": "connequitymailer.com\\/open\\/",
  "ConstantContact.com": ["rs6.net\\/on.jsp", "constantcontact.com/images/p1x1.gif"],
  "ContactMonkey.com": "contactmonkey.com\\/api\\/v1\\/tracker",
  "ConvertKit.com": [
    "open.convertkit-mail.com",
    "convertkit-mail.com\\/o\\/",
  ],
  "Copper.com": "prosperworks.com\\/tp\\/t",
  "Cprpt.com": "\\/o.aspx?t=",
  "Creditmantri.com": "mailer.creditmantri.com\\/t\\/",
  "Critical Impact": "portal.criticalimpact.com\\/c2\\/",
  "Customer.io": [
    "customeriomail.com\\/e\\/o",
    "track.customer.io\\/e\\/o",
    "\\/e\\/o\\/[a-zA-Z0-9]{63}",
  ],
  "Dell.com": "ind.dell.com",
  "DidTheyReadIt.com": "xpostmail.com",
  "DotDigital.com": ["trackedlink.net", "dmtrk.net"],
  "Driftem.com": "driftem.com\\/ltrack",
  "Dropbox.com": "dropbox.com\\/l\\/",
  "DZone.com": "mailer.dzone.com\\/open.php",
  "Ebsta.com": ["console.ebsta.com", "ebsta.gif", "ebsta.com\\/r\\/"],
  "EdgeSuite.net": "epidm.edgesuite.net",
  "Egocdn.com": "egocdn.com\\/syn\\/mail_s.php",
  "EmailTracker.website": "my-email-signature.link",
  "Emarsys.com": "emarsys.com\\/e2t\\/o\\/",
  "Etransmail.com": "ftrans03.com\\/linktrack\\/",
  "EventBrite.com": "eventbrite.com\\/emails\\/action",
  "EventsInYourArea.com": "eventsinyourarea.com\\/track",
  "EveryAction.com": "click.everyaction.com\\/j\\/",
  "Evite.com": ["pippio.com\\/api\\/sync", "nli.evite.com\\/imp"],
  "Facebook.com": [
    "facebook.com\\/email_open_log_pic.php",
    "facebookdevelopers.com\\/trk",
    "fb.com\\/trk",
  ],
  "Flipkart.com": "flipkart.com\\/t\\/open",
  "ForMirror.com": "formirror.com\\/open\\/",
  "FreeLancer.com": "freelancer.com\\/1px.gif",
  "FreshMail.com": [
    "mail.[a-zA-Z0-9-.]+.pl\\/o\\/",
    "\\/o\\/(\\w){10,}\\/(\\w){10,}",
  ],
  "FrontApp.com": [
    "app.frontapp.com\\/(.*)?\\/seen", 
    "web.frontapp.com\\/api"
  ],
  "FullContact.com": "fullcontact.com\\/wf\\/open",
  "GearBest.com": "appinthestore.com\\/marketing\\/mail-user-deal\\/open",
  "Gem.com": "zen.sr\\/o",
  "GetBase.com": "getbase.com\\/e1t\\/o\\/",
  "GetMailSpring.com": "getmailspring.com\\/open",
  "GetNotify.com": "email81.com",
  "GetPocket.com": "email.getpocket.com\\/wf\\/open",
  "GetResponse.com": "getresponse.com\\/open.html",
  "Github.com": "github.com\\/notifications\\/beacon",
  "GlassDoor.com": "mail.glassdoor.com\\/pub\\/as",
  "Gmass.com": [
    "ec2-52-26-194-35.us-west-2.compute.amazonaws.com",
    "link.gmreg\\d.net",
    "gmreg\\d.net",
    "gmtrack.net",
  ],
  "Gmelius.com": "gml.email",
  "Granicus.com": "govdelivery.com(:\\d+)?\\/track",
  "GrowthDot.com": "growthdot.com\\/api\\/mail-tracking",
  "Google.com": [
    "ad.doubleclick.net\\/ddm\\/ad",
    "google-analytics.com\\/collect",
    "google.com\\/appserve\\/mkt\\/img\\/",
  ],
  "Grammarly.com": "grammarly.com\\/open",
  "GreenMailInc.com": "greenmail.co.in",
  "Homeaway.com": "trk.homeaway.com",
  "HubSpot.com": [
    "t.(hubspotemail|hubspotfree|signaux|senal|signale|sidekickopen|sigopn|hsmsdd)",
    "t.strk\\d{2}.email",
    "track.getsidekick.com",
    "\\/e2t\\/(o|c|to)\\/",
  ],
  "Hunter.io": "mltrk.io\\/pixel",
  "iContact.com": "click.icptrack.com\\/icp\\/",
  "Infusionsoft.com": "infusionsoft.com\\/app\\/emailOpened",
  "Insightly.com": "insgly.net\\/api\\/trk",
  "Intercom.com": [
    "intercom-mail[a-zA-Z0-9-.]*.com\\/(via\\/)?(o|q)",
    "via.intercom.io\\/o",
  ],
  "JangoMail.com": "\\/[a-z].z\\?[a-z]=",
  "InfusionSoft.com": "infusionsoft.com\\/app\\/emailOpened",
  "Is-tracking-pixel-api-prod.appspot.com":
    "is-tracking-pixel-api-prod.appspot.com",
  "Klaviyo.com": "trk.klaviyomail.com",
  "LaunchBit.com": "launchbit.com\\/taz-pixel",
  "Linkedin.com": "linkedin.com\\/emimp\\/",
  "Litmus.com": "emltrk.com",
  "LogDNA.com": "ping.answerbook.com",
  "Magento.com": [
    "magento.com\\/trk",
    "magento.com\\/wf\\/open",
    "go.rjmetrics.com",
  ],
  "MailChimp.com": "list-manage.com\\/track",
  "MailCoral.com": "mailcoral.com\\/open",
  "MailInifinity.com": "mailinifinity.com\\/ptrack",
  "MailJet.com": [
    "mjt.lu/oo", 
    "links.[a-zA-Z0-9-.]+\\/oo\\/"
  ],
  "MailGun.com": "email.(mailgun|mg)(.*)\\?\\/o\\/",
  "MailButler.io": "mailbutler.io\\/tracking\\/",
  "MailTag.io": "mailtag.io\\/email-event",
  "MailTrack.io": [
    "mailtrack.io\\/trace",
    "mltrk.io\\/pixel\\/"
  ],
  "Mailzter.in": "mailzter.in\\/ltrack",
  "MandrillApp.com": "mandrill.\\S+\\/track\\/open.php",
  "Marketo.com": ["marketo.com\\/trk", "\\/trk\\?t="],
  "Mention.com": "mention.com\\/e\\/o\\/",
  "MetaData.io": "metadata.io\\/e1t\\/o\\/",
  "MixMax.com": [
    "(email|track).mixmax.com",
    "mixmax.com\\/api\\/track\\/",
    "mixmax.com\\/e\\/o",
  ],
  "MixPanel.com": "mixpanel.com\\/(trk|track)",
  "MyEmma.com": ["e2ma.net\\/track", "t.e2ma.net"],
  "Nation Builder": "nationbuilder.com\\/r\\/o",
  "Nation Builder": "nationbuilder.com\\/wf\\/open",
  "NeteCart.com": "netecart.com\\/ltrack",
  "Nethunt.com": [
    "nethunt.com\\/api\\/v1\\/track\\/email\\/",
    "nethunt.co(.*)\\?\\/pixel.gif",
  ],
  "NewtonHQ.com": "tr.cloudmagic.com",
  "OpenBracket.co": "openbracket.co\\/track",
  "Opicle.com": "track.opicle.com",
  "Oracle.com": [
    "tags.bluekai.com\\/site",
    "en25.com\\/e\\/",
    "dynect.net\\/trk.php",
    "bm5150.com\\/t\\/",
    "bm23.com\\/t\\/",
    "[a-zA-Z0-9-.]+\\/e\\/FooterImages\\/FooterImage",
  ],
  "Outreach.io": [
    "app.outreach.io",
    "api\\/mailings\\/opened",
    "outrch.com\\/api\\/mailings\\/opened",
    "getoutreach.com\\/api\\/mailings\\/opened",
  ],
  "PayBack.in": ["email.payback.in\\/a\\/", "mail.payback.in\\/tr\\/"],
  "PayPal.com": "paypal-communication.com\\/O\\/",
  "Paytm.com": ["email.paytm.com\\/wf\\/open", "trk.paytmemail.com"],
  "phpList.com": ["\\/ut.php\\?u=", "phplist.com\\/lists\\/ut.php"],
  "PipeDrive.com": ["pipedrive.com\\/wf\\/open", "api.nylas.com\\/open"],
  "Playdom.com": "playdom.com\\/g",
  "Polymail.io": ["polymail.io\\/v2\\/z", "share.polymail.io"],
  "PostmarkApp.com": "pstmrk.it",
  "ProductHunt.com": "links.producthunt.com\\/oo\\/",
  "ProlificMail.com": "prolificmail.com\\/ltrack",
  "Quora.com": "quora.com\\/qemail\\/mark_read",
  "ReplyCal.com": "replycal.com\\/home\\/index\\/\\?token",
  "ReplyMsg.com": "replymsg.com",
  "Responder.co.il": "opens.responder.co.il",
  "Return Path": "returnpath.net\\/pixel.gif",
  "Rocketbolt.com": "email.rocketbolt.com\\/o\\/",
  "Runtastic.com": "runtastic.com\\/mo\\/",
  "Sailthru.com": "sailthru.com\\/trk",
  "Salesforce.com": [
    "salesforceiq.com\\/t.png",
    "beacon.krxd.net",
    "app.relateiq.com\\/t.png",
    "nova.collect.igodigital.com",
    "exct.net\\/open.aspx",
  ],
  "SalesHandy.com": "saleshandy.com\\/web\\/email\\/countopened",
  "SalesLoft.com": "salesloft.com\\/email_trackers",
  "Segment.com": "email.segment.com\\/e\\/o\\/",
  "Selligent.com": "strongview.com/t",
  "SendInBlue.com": ["sendibtd.com", "sendibw{2}.com\\/track\\/"],
  "Sendgrid.com": [
    "sendgrid.(net|com)\\/wf\\/open",
    "sendgrid.(net|com)\\/trk",
    "sendgrid.(net|com)\\/mpss\\/o",
    "sendgrid.(net|com)\\/ss\\/o",
    "wf\\/open\\?upn",
  ],
  "SendPulse.email": "stat-pulse.com",
  "Sendy.co": "\\/sendy\\/t\\/",
  "Signal.co": "signl.live/tracker",
  "Skillsoft.com": "skillsoft.com\\/trk",
  "Streak.com": ["mailfoogae.appspot.com", "streak.com\\/e\\/o\\/"],
  "Substack.com": "substack.com\\/o\\/",
  "Super Human": "r.superhuman.com",
  "TataDocomoBusiness.com": "tatadocomobusiness.com\\/rts\\/",
  "Techgig.com": "tj_mailer_opened_count_all.php",
  "TheTopInbox.com": "thetopinbox.com\\/track\\/",
  "TinyLetter.com": "tinyletterapp.com\\.*\\?open.gif",
  "Thunderhead.com": "na5.thunderhead.com",
  "ToutApp.com": "go.toutapp.com",
  "TrackApp.io": [
    "trackapp.io\\/b\\/",
    "trackapp.io\\/r\\/",
    "trackapp.io\\/static\\/img\\/track.gif",
  ],
  "Transferwise.com": "links.transferwise.com\\/track\\/",
  "Trello.com": ["sptrack.trello.com\\/q\\/", "i.trellomail.com\\/e\\/eo"],
  "Udacity.com": "udacity.com\\/wf\\/open",
  "Unsplash.com": "email.unsplash.com\\/o\\/",
  "Upwork.com": "email.mg.upwork.com\\/o\\/",
  "Vcommission.com": "tracking.vcommission.com",
  "Vtiger.com": "od2.vtiger.com\\/shorturl.php",
  "WildApricot.com": [
    "wildapricot.com\\/o\\/",
    "wildapricot.org\\/emailtracker",
  ],
  "Wix.com": "shoutout.wix.com/[a-zA-Z0-9-.]*\\/pixel\\/",
  "Workona.com": "workona.com\\/mk\\/op\\/",
  "Yamm.com": "yamm-track.appspot",
  "YesWare.com": ["yesware.com\\/trk", "yesware.com\\/t\\/", "t.yesware.com"],
  "Zendesk.com": "futuresimple.com\\/api\\/v1\\/sprite.png",
  Unknown: [
    "\\/track\\/open",
    "click.[a-zA-Z0-9-.]+\\/open.aspx",
    "\\/open.aspx\\?tp=",
    "\\/WebEvent\\/SetCookie.gif\\?tp=",
    "email.[a-zA-Z0-9-.]+\\/o\\/[a-zA-Z0-9-_.]{64}",
    "\\/smtp.mailopen",
  ],
};

// Turn object values into regex
const emailTrackerBlocklist = new RegExp(Object.values(trackers).flat().join("|"), "i");

// Test if a url is in the list - returns true|false
function isEmailTracker(url) {
  return emailTrackerBlocklist.test(url);
}

// Example usage
// let exampleUrl = "url-you-want-to-test.com";
// let isTracker = isEmailTracker(exampleUrl);