Tracking 122,210 certificates across 273 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 |
|---|---|---|---|---|---|---|
| gmail.com | 9,773 | 5 | 0 / 9,773 exp | — | UP | |
| microsoft.com | 5,827 | 3,779 | 0 / 5,827 exp | — | UP | |
| shopify.com | 5,252 | 311 | 0 / 5,252 exp | — | UP | |
| fastly.com | 5,245 | 114 | 7 / 5,238 exp | — | UP | |
| cloudflare.com | 4,978 | 3,423 | 0 / 4,978 exp | — | UP | |
| zdrav.ru | 4,816 | 147 | 0 / 4,816 exp | — | UP | |
| opentechnology.ru | 4,724 | 256 | 0 / 4,724 exp | — | UP | |
| azure.com | 4,502 | 3,139 | 0 / 4,502 exp | — | UP | |
| amazonaws.com | 4,445 | 2,068 | 0 / 4,445 exp | — | UP | |
| oneadvanced.com | 3,373 | 295 | 330 / 3,043 exp | — | UP | |
| techsurgeons.com | 3,347 | 29 | 51 / 3,296 exp | — | UP | |
| techinfus.com | 3,335 | 424 | 0 / 3,335 exp | — | UP | |
| pax8.com | 2,891 | 181 | 202 / 2,689 exp | — | UP | |
| jalgpall.ee | 2,809 | 53 | 60 / 2,749 exp | — | UP | |
| twitter.com | 2,650 | 495 | 0 / 2,650 exp | — | UP | |
| hansefit.de | 2,589 | 259 | 355 / 2,234 exp | — | UP | |
| playstation.com | 2,579 | 995 | 0 / 2,579 exp | — | UP | |
| stripe.com | 2,321 | 200 | 122 / 2,199 exp | — | UP | |
| ccaf.io | 2,082 | 25 | 126 / 1,956 exp | — | UP | |
| netlify.com | 1,821 | 111 | 104 / 1,717 exp | — | UP | |
| dropbox.com | 1,801 | 480 | 198 / 1,603 exp | — | UP | |
| 3plearning.com | 1,776 | 129 | 170 / 1,606 exp | — | UP | |
| lemoyne.edu | 1,549 | 128 | 127 / 1,422 exp | — | UP | |
| kansas.net | 1,548 | 100 | 63 / 1,485 exp | — | UP | |
| gdevelop.io | 1,422 | 21 | 91 / 1,331 exp | — | UP | |
| nitrocommerce.ai | 1,416 | 128 | 157 / 1,259 exp | — | UP | |
| plane.so | 1,312 | 133 | 80 / 1,232 exp | — | UP | |
| valor.com.br | 1,283 | 55 | 128 / 1,155 exp | — | UP | |
| btcturk.com | 1,212 | 33 | 44 / 1,168 exp | — | UP | |
| myclinicalexchange.com | 1,135 | 20 | 3 / 1,132 exp | — | UP | |
| hmu.gr | 1,078 | 334 | 238 / 840 exp | — | UP | |
| noris.net | 1,074 | 130 | 58 / 1,016 exp | — | UP | |
| joomla.com | 1,062 | 131 | 14 / 1,048 exp | — | UP | |
| lifestance.com | 1,059 | 61 | 189 / 870 exp | — | UP | |
| infoashwagandha.com | 1,055 | 353 | 2 / 1,053 exp | — | UP | |
| wilmingtontrust.com | 1,011 | 208 | 101 / 910 exp | — | UP | |
| bestjobs.eu | 1,004 | 155 | 12 / 992 exp | — | UP | |
| singaporetech.edu.sg | 966 | 78 | 79 / 887 exp | — | UP | |
| harris.com | 956 | 702 | 16 / 940 exp | — | UP | |
| lyft.com | 949 | 46 | 35 / 914 exp | — | UP | |
| hosting.kr | 803 | 57 | 53 / 750 exp | — | UP | |
| thenerdstash.com | 771 | 47 | 16 / 755 exp | — | UP | |
| icloud.com | 767 | 4,482 | 0 / 767 exp | — | UP | |
| senler.ru | 728 | 41 | 25 / 703 exp | — | UP | |
| ttb.gov | 717 | 77 | 86 / 631 exp | — | UP | |
| imsa.com | 703 | 34 | 37 / 666 exp | — | UP | |
| unemi.edu.ec | 693 | 69 | 43 / 650 exp | — | UP | |
| linkedin.com | 623 | 1,772 | 0 / 623 exp | — | UP | |
| bakai.kg | 602 | 44 | 10 / 592 exp | — | UP | |
| substack.com | 598 | 28 | 19 / 579 exp | — | UP |