Here a list of trusted list of site you can use for reporting malicious site.
- Google SafeBrowsing: https://safebrowsing.google.com/safebrowsing/report_phish/
- Microsoft: https://www.microsoft.com/en-us/wdsi/support/report-unsafe-site
- Fortiguard: https://www.fortiguard.com/webfilter
- BrightCloud: https://www.brightcloud.com/tools/url-ip-lookup.php
- CRDF: https://threatcenter.crdf.fr/submit_url.html
- Netcraft: https://report.netcraft.com/report
- Palo Alto Networks: https://urlfiltering.paloaltonetworks.com/
- ESET: https://phishing.eset.com/en-us/report
- Trend Micro: https://global.sitesafety.trendmicro.com
- BitDefender: https://www.bitdefender.com/consumer/support/answer/29358/
- McAfee: https://sitelookup.mcafee.com/
- Forcepoint: https://csi.forcepoint.com/
- Symantec: https://sitereview.symantec.com/#
- Spam404: https://www.spam404.com/report.html
- Kaspersky: https://opentip.kaspersky.com/
- Cisco Talos: https://talosintelligence.com/reputation_center
- Avira: https://www.avira.com/en/analysis/submit-url