https://researchevaluations.com/?ac6632b4
2 detections · review the detection signals
Host summary
Observed host history, traffic, and infrastructure
| Host | Rank | Registered | First seen | Last seen | Sent | Received | IP | Fingerprints |
|---|---|---|---|---|---|---|---|---|
| challenges.cloudflare.com | 11393 | 2009-02-17 | 2021-10-20 | 2026-10-11 | 14.7 KB | 2.40 MB |  104.18.94.41 | Cloudflare CDN Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. |
| brunhild.challenges.cloudflare.com | N/A | 2009-02-17 | 2026-06-24 | 2026-10-07 | 628 B | 0 B | Not recorded | |
| researchevaluations.com 4 alerts | N/A | 2026-10-08 | 2026-10-12 | 2026-10-12 | 2.1 KB | 5.1 KB | 104.21.24.151 | Cloudflare CDN Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. Express Web frameworks, Web servers Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs. Node.js Programming languages Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser. |
| href.li 1 alerts | 30988 | N/A | 2012-05-22 | 2026-10-05 | 546 B | 325 B |  192.0.78.26 | HSTS Security HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. Nginx Web servers, Reverse proxies Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. |
Observed certificates
Distinct fingerprints recorded in HTTP transactions
| Subject | Issuer | Valid from | Valid until | Fingerprint | Hosts |
|---|---|---|---|---|---|
| challenges.cloudflare.com | Google Trust Services · WE1 | Fri, 14 Aug 2026 21:10:25 GMT | Thu, 12 Nov 2026 22:10:06 GMT | SHA25619:83:5B:D3:2C:DF:FE:44:CC:51:73:F6:5E:98:2B:5C:42:6D:3A:01:F4:37:63:E0:EC:11:45:78:B5:24:15:3D | challenges.cloudflare.com |
| researchevaluations.com | Let's Encrypt · YE2 | Thu, 08 Oct 2026 17:12:56 GMT | Wed, 06 Jan 2027 17:12:55 GMT | SHA256F2:F8:1D:53:76:49:EC:DA:75:97:FC:56:3A:FD:D6:96:95:E1:07:73:CB:42:FF:86:9C:CF:08:63:FF:56:19:6B | researchevaluations.com |