51.83.77.64
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of 51.83.77.64
On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.
Autonomous System
Geolocation
Reverse DNS
Network
Open Ports
| Port | Proto | Service | Server | Last seen |
|---|---|---|---|---|
| 443 | tcp | https | Apache/2.4.25 (Debian) | 2026-06-18 13:45:23.000 |
TLS Certificates
Known Vulnerabilities
Published CVEs matched to the software versions fingerprinted on this host. Matching is by product and version against the NVD dictionary — presence of a CVE does not confirm the host is exploitable (patches or backports may apply).
| CVE | Software | CVSS | Severity | Summary |
|---|---|---|---|---|
| CVE-2017-3169 | Apache 2.4.25 | 9.8 | N/A | In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() d... |
| CVE-2018-1312 | Apache 2.4.25 | 9.8 | N/A | In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated us... |
| CVE-2017-15710 | Apache 2.4.25 | 7.5 | N/A | In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language head... |
| CVE-2017-7659 | Apache 2.4.25 | 7.5 | N/A | A maliciously constructed HTTP/2 request could cause mod_http2 in Apache HTTP Server 2.4.24, 2.4.25 to dereference a NULL pointer and crash the server process. |
| CVE-2017-7668 | Apache 2.4.25 | 7.5 | N/A | The HTTP strict parsing changes added in Apache httpd 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the... |
| CVE-2017-9798 | Apache 2.4.25 | 7.5 | N/A | Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has... |
| CVE-2018-17189 | Apache 2.4.25 | 5.3 | N/A | In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily... |
Tech Stack
Detected via Wappalyzer-style rules on the HTTP response body, headers, scripts and meta tags.
Origin / IP-Leak
When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.
No origin-leak candidates for this IP
When this IP serves a TLS cert for a domain that fronts behind a CDN, that domain surfaces here as an origin-leak candidate with a confidence score.
Multi-Vantage Check
Reachability accrued passively from real user-triggered checks across our 65+ probe nodes. Run a live check to add fresh data.
No accumulated reachability data yet
Reachability accrues from real user-triggered checks. Trigger a Ping or HTTP check from our 65+ probe nodes to contribute the first data point.
Web Pages
| Port | Page title | Status | Flags |
|---|---|---|---|
| 443 | Budismo clásico en español para todos. | 200 |
Threat Intelligence
No threat-intel matches
This IP doesn't appear in any of the feeds we mirror (Tor exits, FireHOL Level 1-3, Spamhaus DROP/EDROP, URLhaus, OpenPhish). Absence here doesn't prove the IP is clean — it just means none of our public-feed sources flag it.
Co-Hosted Domains
Domains this host references in its HTML AND whose DNS A/AAAA record resolves back to this IP — i.e. actually hosted here.
External References
Domains the body links to whose DNS does NOT resolve to this IP — usually CDN assets, embeds, or third-party services. Boilerplate (Google Fonts, jsDelivr, w3.org…) is already filtered.
History
The full change-log (ASN moves, cert rotations, port-state diffs) accumulates as our archives grow.