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 borclays.netcraft.com as the associated certificate is valid for *.netcraft.com.

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 3574
Comodo 3211
GoDaddy 123
DigiCert 66
GlobalSign 49
SSL.com 22
TrustAsia Technologies, Inc. 17
STRATO AG 17
Actalis S.p.A./03358520967 15
CloudFlare, Inc. 15

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.