Tracking 17,498 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 |
|---|---|---|---|---|---|---|
| amazonaws.com | 4,445 | 2,068 | 0 / 4,445 exp | 2020-01-29 | UP | |
| anthropic.com | 3,896 | 140 | 527 / 3,369 exp | 2026-08-03 | UP | |
| playstation.com | 2,579 | 995 | 0 / 2,579 exp | 2023-07-11 | UP | |
| zoom.us | 2,408 | 2,589 | 0 / 2,408 exp | 2022-09-24 | UP | |
| storage.googleapis.com | 1,553 | 4 | 0 / 1,553 exp | 2020-01-27 | UP | |
| tumblr.com | 1,046 | 92 | 34 / 1,012 exp | 2026-08-01 | UP | |
| blogspot.com | 804 | 88 | 0 / 804 exp | 2020-01-24 | UP | |
| icloud.com | 767 | 4,482 | 0 / 767 exp | 2021-03-31 | UP | |
| airbnb.com | 0 | 0 | 141 / 741 exp | 2026-07-26 | 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 | |
| apple.com | 0 | 0 | 0 / 2,561 exp | 2020-01-27 | DOWN | |
| azure.com | 0 | 0 | 0 / 4,502 exp | 2020-01-27 | DOWN | |
| bing.com | 0 | 0 | 0 / 0 exp | — | DOWN | |
| bitbucket.io | 0 | 0 | 131 / 83 exp | 2026-07-30 | UNCERTAIN | |
| blob.core.windows.net | 0 | 0 | 0 / 5,008 exp | 2020-09-01 | UNCERTAIN | |
| cloudflare.com | 0 | 0 | 0 / 4,978 exp | 2020-01-26 | UNCERTAIN | |
| cloudfront.net | 0 | 0 | 0 / 6,519 exp | 2020-06-02 | DOWN | |
| cohere.com | 0 | 0 | 3 / 4,654 exp | 2026-05-05 | UNCERTAIN | |
| dev.to | 0 | 0 | 68 / 2,364 exp | 2026-07-23 | UNCERTAIN | |
| digitalocean.com | 0 | 0 | 276 / 5,657 exp | 2026-06-19 | UNCERTAIN | |
| discord.com | 0 | 0 | 49 / 1,117 exp | 2026-07-22 | DOWN | |
| docker.com | 0 | 0 | 362 / 3,246 exp | 2026-07-31 | UNCERTAIN | |
| dropbox.com | 0 | 0 | 246 / 1,496 exp | 2026-07-26 | UNCERTAIN | |
| duckduckgo.com | 0 | 0 | 0 / 4,970 exp | 2022-09-06 | DOWN | |
| ebay.com | 0 | 0 | 0 / 2,183 exp | 2020-01-27 | UNCERTAIN | |
| facebook.com | 0 | 0 | 0 / 2,093 exp | 2020-09-29 | UNCERTAIN | |
| fastly.com | 0 | 0 | 0 / 0 exp | — | DOWN | |
| github.com | 0 | 0 | 127 / 1,017 exp | 2026-07-28 | DOWN | |
| github.io | 0 | 0 | 0 / 5,055 exp | 2021-10-16 | UNCERTAIN | |
| gitlab.com | 0 | 0 | 0 / 4,134 exp | 2023-09-30 | UNCERTAIN | |
| gitlab.io | 0 | 0 | 15 / 433 exp | 2026-06-17 | UNCERTAIN | |
| gmail.com | 0 | 0 | 0 / 9,773 exp | 2020-01-29 | UNCERTAIN | |
| google.com | 0 | 0 | 0 / 1,152 exp | 2020-07-26 | UNCERTAIN | |
| hashicorp.com | 0 | 0 | 253 / 5,027 exp | 2026-07-15 | DOWN | |
| hashnode.com | 0 | 0 | 197 / 2,386 exp | 2026-07-28 | UNCERTAIN | |
| heroku.com | 0 | 0 | 0 / 3,711 exp | 2020-08-30 | UNCERTAIN | |
| huggingface.co | 0 | 0 | 65 / 2,549 exp | 2026-07-28 | UNCERTAIN | |
| instagram.com | 0 | 0 | 0 / 3,078 exp | 2021-01-18 | UNCERTAIN | |
| kubernetes.io | 0 | 0 | 26 / 1,384 exp | 2026-07-26 | UNCERTAIN | |
| linkedin.com | 0 | 0 | 0 / 623 exp | 2020-01-27 | UNCERTAIN | |
| live.com | 0 | 0 | 0 / 2,492 exp | 2020-01-27 | UNCERTAIN | |
| lyft.com | 0 | 0 | 42 / 885 exp | 2026-08-02 | UNCERTAIN | |
| me.com | 0 | 0 | 0 / 2,588 exp | 2025-06-11 | UNCERTAIN | |
| medium.com | 0 | 0 | 39 / 500 exp | 2026-08-02 | 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 | DOWN | |
| netflix.com | 0 | 0 | 0 / 2,956 exp | 2020-01-27 | UNCERTAIN | |
| netlify.com | 0 | 0 | 174 / 1,570 exp | 2026-08-01 | UNCERTAIN |