Celebrating 27 Years

Celebrating 27 Years – Announcing the new GeoTrust Horizon® platform. Learn More

GEOTRUST RESEARCH · OCTOBER 2026 CRAWL

The State of SSL/TLS

We used GeoTrust SSL Monitor to analyze the security of the world's 1,000,000 most-visited websites.

INDUSTRY
  • All industries1,000,000
  • Adult25,205
  • Cloud & Infrastructure53,759
  • E-commerce & Retail153,639
  • Education104,381
  • Finance34,943
  • Gaming & Gambling91,102
  • Government22,430
  • Healthcare43,301
  • Media & Social122,588
  • News & Publishing34,946
  • Software & Internet234,505
  • Telecom7,357
  • Travel & Local59,026
  • Other12,818
REGION
  • All regions1,000,000
  • North America151,666
  • South America36,166
  • Europe261,572
  • Asia180,128
  • Middle East23,626
  • Africa11,295
  • Oceania14,128
  • Unknown321,408
RANK
  • All ranks1,000,000
  • top 1k781
  • 1k–10k7,514
  • 10k–100k77,557
  • 100k+914,148

Showing 1,000,000 of 1,000,000 websites

4.6%

of the world's most-visited websites leave a real visitor facing a certificate error on the front door.

Denominator: websites · n = 1,000,000
View as table
CategorySitesShare
Fully secure513,59451.4%
Secure72,7337.3%
Secure with serious issues348,86534.9%
Certificate breaks for visitors46,4214.6%
Website with no HTTPS18,3871.8%
Certificate lifetimes

The lifetime cliff

The maximum certificate lifetime falls from 200 days (March 2026) to 100 (March 2027) and 47 (March 2029). Websites with SSL automation are already prepared.

Certificate lifetimes

How many websites are already using shorter certificates?

188,710377,420566,130754,840≤ 47 days: 2,499 (0.3%)2,499 · 0%≤ 47 days48–100 days: 754,840 (77.5%)754,840 · 78%48–100 days101–200 days: 128,665 (13.2%)128,665 · 13%101–200 days201–398 days: 83,317 (8.6%)83,317 · 9%201–398 days> 398 days: 4,120 (0.4%)4,120 · 0%> 398 days47-day max (Mar 2029)100-day max (Mar 2027)200-day max (Mar 2026)median 90 d
Reference line

Maximum lifetime: 200 days (Mar 2026), 100 (Mar 2027), 47 (Mar 2029).

Denominator: deep-scanned websites · n = 973,441

View as table
BucketSitesShare
≤ 47 days2,4990.3%
48–100 days754,84077.5%
101–200 days128,66513.2%
201–398 days83,3178.6%
> 398 days4,1200.4%
Certificate authorities

The CA market

Market share by certificate issuer

Which CA secures the most websites?

DigiCert: 183 deep-scanned websites (23.8%)DigiCert24%Google Trust Services: 161 deep-scanned websites (21%)Google Trust Ser…21%Let's Encrypt: 143 deep-scanned websites (18.6%)Let's Encrypt19%Amazon: 95 deep-scanned websites (12.4%)Amazon12%GlobalSign: 77 deep-scanned websites (10%)GlobalSign10%Sectigo: 42 deep-scanned websites (5.5%)SectigoMicrosoft: 19 deep-scanned websites (2.5%)GoDaddy.com: 10 deep-scanned websites (1.3%)Apple: 5 deep-scanned websites (0.7%)Other: 33 deep-scanned websites (4.3%)Other
DigiCertGoogle Trust ServicesLet's EncryptAmazonGlobalSignSectigoMicrosoftGoDaddy.comAppleOther

DigiCert includes GeoTrust, Thawte, and RapidSSL.

Denominator: deep-scanned websites · n = 768 · top 1k

View as table
CategorySitesShare
DigiCert18323.8%
Google Trust Services16121%
Let's Encrypt14318.6%
Amazon9512.4%
GlobalSign7710%
Sectigo425.5%
Microsoft192.5%
GoDaddy.com101.3%
Apple50.7%
Other334.3%
More insights

More certificate insights

Validation levels: 93.5% prove domain control only

DV proves domain control; OV and EV add organization vetting.

DV: 910,615 deep-scanned websites (93.5%)94%OV: 56,010 deep-scanned websites (5.8%)EV: 6,816 deep-scanned websites (0.7%)93.5%DV
DV 910,615 · 93.5%OV 56,010 · 5.8%EV 6,816 · 0.7%

Denominator: deep-scanned websites · n = 973,441

View as table
CategorySitesShare
DV910,61593.5%
OV56,0105.8%
EV6,8160.7%

Public key algorithms

Key type and size of the presented leaf certificate.

EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% EC: 53.4% 53.4%EC519,871 of 973,441 deep-scanned websites
RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% RSA: 46.6% 46.6%RSA453,569 of 973,441 deep-scanned websites
unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% unknown: 0% 0%unknown1 of 973,441 deep-scanned websites

Denominator: deep-scanned websites · n = 973,441

View as table
CategorySitesShare
EC519,87153.4%
RSA453,56946.6%
unknown10%

Subject alternative names per certificate

1 vs. many

2–10 names · top 1k2–10 names · 1k–10k2–10 names · 1k–10k2–10 names · 1k–10k2–10 names · 1k–10k2–10 names · 1k–10k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 10k–100k2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+2–10 names · 100k+1 name · top 1k1 name · 1k–10k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 10k–100k1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+1 name · 100k+11–100 names · top 1k11–100 names · 1k–10k11–100 names · 10k–100k11–100 names · 10k–100k11–100 names · 10k–100k11–100 names · 10k–100k11–100 names · 10k–100k11–100 names · 10k–100k11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+11–100 names · 100k+> 100 names (shared certificate) · top 1k> 100 names (shared certificate) · 1k–10k> 100 names (shared certificate) · 10k–100k> 100 names (shared certificate) · 100k+> 100 names (shared certificate) · 100k+
2–10 names 705,8501 name 221,14511–100 names 44,526> 100 names (shared certificate) 1,920

One square ≈ 1,000 sites (973,441 in view); categories with fewer sites are shown as a single square. Some certificates with 2 SANs are one domain with www and non-www versions. Certificates with hundreds of names are typically shared, multi-tenant edge certificates.

Denominator: deep-scanned websites · n = 973,441

View as table
CategorySitesShare
2–10 names705,85072.5%
1 name221,14522.7%
11–100 names44,5264.6%
> 100 names (shared certificate)1,9200.2%

Issuance and revocation controls

CAA restricts who may issue; OCSP stapling carries revocation status in the handshake.

CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% CAA adoption: 6.3% 6.3%CAA adoption62,800 of 1,000,000 websites
OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% OCSP stapling: 8.3% 8.3%OCSP stapling81,282 of 973,441 deep-scanned websites

Denominators: websites / deep-scanned websites — each measure states its own

View as table
MeasureShareSitesn
CAA adoption6.3%62,8001,000,000
OCSP stapling8.3%81,282973,441