Expect-CT directives (3 total)
- enforce
- max-age
- report-uri
The Expect-CT header allows sites to opt in to reporting and/or enforcement of Certificate Transparency requirements which prevents the use of misissued certificates for that site from going unnoticed
Websites using header Expect-CT | 175,228 |
Percentage of websites that use Expect-CT header | 0.22% |
Total discovered header values | 6,547 |
Header uses directives | Yes |
Header values are unique or random | No |
Most popular in the country | United States |
Directive | Share | Websites count | Unique Values |
---|---|---|---|
max-age | 99.12% | 173,680 | 58 |
enforce | 69.69% | 122,125 | 35 |
report-uri | 17.29% | 30,305 | 386 |
Cloudflare, category Content Delivery Networks, total 10,469,607 websites |
Replit, category Dev Tools, total 236 websites |
Domain | Country | Rank | Contacts |
---|---|---|---|
www.afternic.com | Netherlands | 52 | |
www.godaddy.com | United States | 97 | |
finance.yahoo.com | United States | 102 | |
tw.yahoo.com | United States | 162 | |
yahoo.com.tw | United States | 210 | |
www.yahoo.com | United States | 416 |
Header value | Value prevalence |
---|---|
max-age=7776000, enforce | 24.27% |
max-age=0 | 15.53% |
max-age=86400, enforce | 12.31% |
enforce, max-age=21600 | 7.08% |
max-age=31536000, report-uri="http://csp.yahoo.com/beacon/csp?src=yahoocom-expect-ct-report-only" | 4.20% |
enforce, max-age=86400, report-uri="https://hpage-report.uriports.com/reports/enforce" | 1.52% |
max-age=86400 | 1.42% |
enforce, max-age=31536000 | 1.30% |
enforce, max-age=300 | 1.28% |
max-age=5184000, enforce | 1.13% |
enforce; max-age=2592000; | 1.03% |
enforce; max-age=3600 | 1.02% |
enforce, max-age=3600 | 1.00% |
enforce,max-age=2592000 | 0.93% |
enforce, max-age=86400 | 0.90% |
max-age=0, report-uri="/report-expect-ct-violation" | 0.88% |
enforce, max-age=43200 | 0.87% |
enforce; max-age=30 | 0.85% |
max-age=31536000 | 0.68% |
enforce, max-age=30 | 0.68% |