Phishiest Certificate Authorities

This table show the top 10 phishiest certificate authorities, based on the number of currently blocked phishing sites with an associated valid, trusted SSL certificate where the CA has had a chance to review the deceptive domain name or host name. For example, we do not include a block of as the associated certificate is valid for *

Find out more about Netcraft's Services for Certificate Authorities, including Phishing Alerts for CAs, Deceptive Domain Scoring, and Pre-Issuance certificate checking.

Certificate Authority Phishing Certificates Currently Blocked
Let's Encrypt 4649
Comodo 3992
GoDaddy 140
GlobalSign 81
DigiCert 33
Actalis S.p.A./03358520967 22
TrustAsia Technologies, Inc. 16
CloudFlare, Inc. 16
Symantec 8

Note: Authorities are ranked by the number of certificates blocked.

This graph shows the number of phishing SSL certificates on each day over the last year, broken down by CA.