Tracking 15,800 certificates across 84 domains from the public CT logs (crt.sh). We discover subdomains automatically, track issuer history, and surface shadow IT from cert issuance.
| Domain | Certs | Subdomains | Active | Newest | Health | Last Check |
|---|---|---|---|---|---|---|
| heroku.com | 3,711 | 258 | 0 / 3,711 exp | 2020-08-30 | UP | |
| anthropic.com | 3,698 | 135 | 480 / 3,218 exp | 2026-06-24 | UP | |
| huggingface.co | 2,663 | 136 | 78 / 2,585 exp | 2026-06-24 | UP | |
| ebay.com | 2,183 | 2,605 | 0 / 2,183 exp | 2020-01-27 | UP | |
| facebook.com | 2,093 | 509 | 0 / 2,093 exp | 2020-09-29 | UP | |
| gitlab.io | 448 | 42 | 21 / 427 exp | 2026-06-17 | UP | |
| wordpress.com | 443 | 80 | 38 / 405 exp | 2026-06-14 | UP | |
| pinterest.com | 369 | 43 | 10 / 359 exp | 2026-06-22 | UP | |
| bitbucket.io | 192 | 1 | 123 / 69 exp | 2026-06-23 | UP | |
| airbnb.com | 0 | 0 | 147 / 706 exp | 2026-06-18 | UNCERTAIN | |
| akamai.com | 0 | 0 | 0 / 1,262 exp | 2020-01-27 | UNCERTAIN | |
| amazon.com | 0 | 0 | 0 / 5,953 exp | 2020-01-27 | UNCERTAIN | |
| amazonaws.com | 0 | 0 | 0 / 4,445 exp | 2020-01-29 | UNCERTAIN | |
| apple.com | 0 | 0 | 0 / 2,561 exp | 2020-01-27 | UNCERTAIN | |
| azure.com | 0 | 0 | 0 / 0 exp | — | UNCERTAIN | |
| bing.com | 0 | 0 | 0 / 0 exp | — | DOWN | |
| blob.core.windows.net | 0 | 0 | 0 / 5,008 exp | 2020-09-01 | UNCERTAIN | |
| blogspot.com | 0 | 0 | 0 / 804 exp | 2020-01-24 | UNCERTAIN | |
| cloudflare.com | 0 | 0 | 0 / 4,978 exp | 2020-01-26 | UNCERTAIN | |
| cloudfront.net | 0 | 0 | 0 / 6,519 exp | 2020-06-02 | UNCERTAIN | |
| cohere.com | 0 | 0 | 5 / 4,652 exp | 2026-05-05 | UNCERTAIN | |
| dev.to | 0 | 0 | 78 / 2,334 exp | 2026-06-15 | UNCERTAIN | |
| digitalocean.com | 0 | 0 | 276 / 5,657 exp | 2026-06-19 | UNCERTAIN | |
| discord.com | 0 | 0 | 119 / 1,586 exp | 2026-06-05 | UNCERTAIN | |
| docker.com | 0 | 0 | 359 / 3,107 exp | 2026-06-20 | UNCERTAIN | |
| dropbox.com | 0 | 0 | 302 / 1,402 exp | 2026-06-18 | UNCERTAIN | |
| duckduckgo.com | 0 | 0 | 0 / 0 exp | — | DOWN | |
| fastly.com | 0 | 0 | 0 / 0 exp | — | DOWN | |
| github.com | 0 | 0 | 108 / 982 exp | 2026-06-19 | UNCERTAIN | |
| github.io | 0 | 0 | 0 / 5,055 exp | 2021-10-16 | UNCERTAIN | |
| gitlab.com | 0 | 0 | 0 / 4,134 exp | 2023-09-30 | UNCERTAIN | |
| gmail.com | 0 | 0 | 0 / 9,773 exp | 2020-01-29 | DOWN | |
| google.com | 0 | 0 | 0 / 1,152 exp | 2020-07-26 | UNCERTAIN | |
| hashicorp.com | 0 | 0 | 0 / 0 exp | — | UNCERTAIN | |
| hashnode.com | 0 | 0 | 192 / 2,318 exp | 2026-06-20 | UNCERTAIN | |
| icloud.com | 0 | 0 | 0 / 767 exp | 2021-03-31 | UNCERTAIN | |
| instagram.com | 0 | 0 | 0 / 3,078 exp | 2021-01-18 | UNCERTAIN | |
| kubernetes.io | 0 | 0 | 35 / 1,356 exp | 2026-06-17 | UNCERTAIN | |
| linkedin.com | 0 | 0 | 0 / 623 exp | 2020-01-27 | UNCERTAIN | |
| live.com | 0 | 0 | 0 / 2,492 exp | 2020-01-27 | DOWN | |
| lyft.com | 0 | 0 | 37 / 883 exp | 2026-06-19 | UNCERTAIN | |
| me.com | 0 | 0 | 0 / 2,584 exp | 2025-06-11 | UNCERTAIN | |
| medium.com | 0 | 0 | 39 / 489 exp | 2026-06-19 | DOWN | |
| meta.com | 0 | 0 | 0 / 3,420 exp | 2022-12-13 | UNCERTAIN | |
| microsoft.com | 0 | 0 | 0 / 5,827 exp | 2020-01-29 | UNCERTAIN | |
| msn.com | 0 | 0 | 0 / 3,644 exp | 2022-06-10 | UNCERTAIN | |
| netflix.com | 0 | 0 | 0 / 2,956 exp | 2020-01-27 | UNCERTAIN | |
| netlify.com | 0 | 0 | 118 / 1,547 exp | 2026-06-21 | UNCERTAIN | |
| npmjs.com | 0 | 0 | 200 / 3,640 exp | 2026-06-15 | UNCERTAIN | |
| nytimes.com | 0 | 0 | 0 / 4,607 exp | 2025-01-15 | UNCERTAIN |