Server Side Tools
49 tools available
These tools need our server to find their answer: they look up DNS, WHOIS, and RDAP records, locate and check IP addresses, verify TLS certificates and redirects, ping Minecraft, Counter-Strike, and other game servers, or check a hostname against blocklists. What you enter is sent to our server, which runs the lookup and sends back the result.
Check whether a hostname or website is on the StevenBlack hosts blocklist, the full list with adware, malware, fake news, gambling, porn, and social media domains.
Check whether a hostname or website is blocked by HaGeZi's Multi ULTIMATE DNS blocklist, the largest tier with ads, trackers, telemetry, phishing, malware, and scams, and see which entry blocks it.
Check whether a hostname or website is blocked or targeted by EasyList, EasyPrivacy, and Fanboy's Annoyance List, and see every filter that blocks it, hides elements on it, or allows it.
See how far a website or IP address is from you on a map. The tool resolves the domain's IP addresses over DNS, geolocates each server, and shows the distance and the theoretical minimum ping from your location.
Find the autonomous system number (ASN) of any IPv4 or IPv6 address. See the AS name, the organization that runs the network, the BGP prefix the address is routed in, and the registry, country, and dates of both.
Check where a URL redirects. See every hop of the redirect chain with its status code, such as 301, 302, 307, or 308, its IP address, and its response time, and find redirect loops and the final URL. Up to 10 redirects are followed.
Find the subdomains of a domain using DNS records. The tool reads the domain's NS, MX, SOA, SRV, and SPF records and checks 350 common names like www, mail, api, and dev, then lists each subdomain with its IP addresses and CNAME target. Wildcard records are detected.
Check how old a public GitHub repository is, when it was last pushed to, and its stars, forks and archive status.
Look up the A, AAAA, CNAME, MX, NS, TXT, SOA, SRV or CAA records of any domain, including names like _dmarc.example.com.
Ask six public DNS resolvers for a domain's records at once and see whether a DNS change has reached them all.
Check whether an IPv4 address is a Tor exit node right now, using the Tor Project's live exit list.
Find out whether an IP address belongs to AWS, Google Cloud, Azure, Oracle Cloud, DigitalOcean, Cloudflare or Fastly, with its range, region and service.
Check a Counter-Strike 2 server's status: name, map, players, bots, game version and the list of connected players.
Check a Minecraft Bedrock Edition server's status: MOTD, version, online and max players, world name and game mode.
Find the newest version tag of a Docker image on Docker Hub, GitHub Container Registry or Quay.io, with its push date, digest and pull command.
Find any Steam account's SteamID64, SteamID, SteamID3 and account ID from a profile link, custom URL or ID, with its profile name and avatar.
See any Minecraft Java player's official skin and cape on a walking 3D model, and download the skin PNG, by username.
Find the hostname of any IPv4 or IPv6 address from its PTR record, and check that the hostname points back to the IP, as mail servers require.
Check whether a website or file is served with gzip, Brotli or Zstandard compression, and how many bytes each one saves.
Find when the Wayback Machine first and last archived any web page, with links to open both snapshots.
See where a Discord invite leads before joining: the server's name, icon, member and online counts, verified badge and expiry.
Check whether an email address comes from a disposable, temporary email service, and whether its domain has mail servers.
Check whether a web page on another origin can call a URL from the browser. Sends the CORS preflight and a request, then explains each check.
Check a website ads.txt or an app developer app-ads.txt file: which ad systems it authorizes, and which lines break the IAB format.