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TPC Hosting network checks for AI: traceroute, DNS trace, HTTP/3, TTFB, SSL, SMTP, DNS, email. Free.
Remote server: your requests and data go to mcp-tools.tpc-hosting.com. Claude Code: claude mcp add --transport http tpc-hosting-free-tools https://mcp-tools.tpc-hosting.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
dns_lookup — Looks up DNS records (A, AAAA, CNAME, MX, NS, TXT, SOA or CAA) for a domain through a public resolver.dns_propagation — Asks several public resolvers around the world for the same record and reports whether they agree, which shows whether a DNS change has propdnssec_check — Checks whether a domain is signed with DNSSEC and whether its chain of trust (DS and DNSKEY records) is consistent.mx_check — Lists the mail servers (MX records) of a domain with their priorities and checks that they resolve.spf_check — Reads and validates a domain's SPF record: syntax, the 10-lookup limit, includes and the final policy.dmarc_check — Reads and validates a domain's DMARC record: policy, reporting addresses, alignment and percentage.dkim_check — Looks up and validates a DKIM public key. Give the selector if you know it; otherwise the common selectors are tried.bimi_check — Checks a domain's BIMI record and logo (SVG) for brand indicators in email clients.email_blacklist_check — Checks whether a mail server IP address or a domain is listed on public DNS blocklists. Give exactly one of ip or domain.email_deliverability_report — Scores a domain's email setup (MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, blocklists) and lists what to fix. Covers the whole email setupwhois_lookup — Looks up a domain's registration data over RDAP: registrar, creation, expiry and update dates, status and nameservers. Not every country codhosting_check — Finds out who hosts a website: the IP addresses, the network and organisation behind them, the nameservers and any CDN in front.redirect_check — Follows a URL's redirects hop by hop and reports each status code, the final address and problems such as loops, long chains or http-to-httphttp_headers_check — Fetches a page and reports its response headers, with a review of the security headers (HSTS, CSP, X-Frame-Options and others) and cookie flwebsite_down_check — Checks whether a website is reachable from Cloudflare's network: DNS first, then one request. Separates 'does not resolve' from 'will not corobots_txt_test — Fetches a site's robots.txt and tests whether a given crawler may fetch a given path, following RFC 9309. Also lists the Sitemap lines and psitemap_check — Finds a site's XML sitemap (from robots.txt or the usual addresses), then validates it against the sitemaps.org protocol and Google's rules.url_status_check — Fetches up to 10 URLs from one site and reports each one's final status code, redirects, content type and X-Robots-Tag. Useful for spot-checip_lookup — Describes a public IP address: the announced prefix and AS number, the network's name, country, registry and the reverse DNS name.asn_lookup — Looks up an AS number (like AS13335) in Team Cymru and RDAP: the network's name, organisation, country, registry and registration dates. An reverse_dns — Finds the PTR (reverse DNS) name of an IP address and checks that the name resolves back to the same address (forward-confirmed reverse DNS)ssl_check — Makes live TLS connections to a host and reports the certificate chain, expiry, protocol versions, cipher strength and common misconfiguratismtp_test — Connects to a domain's mail servers (MX) on port 25, says EHLO, tries STARTTLS and reports banners, TLS and reverse DNS. It never sends maildig — Sends a DNS query like the dig command, to Cloudflare, Google, Quad9 or a nameserver you name, and returns the full answer with flags and sedns_trace — Follows a name from the root servers down through the TLD to its authoritative nameservers, like dig +trace, and shows each delegation step.traceroute — Traces the network path from the probe server in Germany to a host, showing each hop's address and round-trip times.http3_test — Checks whether a site supports HTTP/2 and HTTP/3 (QUIC): ALPN negotiation, the Alt-Svc header and a live QUIC handshake probe.ttfb_test — Times three requests to a web address from the probe server in Germany: DNS, connect, TLS, time to first byte and download. Results are nevewhat_is_my_ip — Returns the IP address this request reached the server from, and whether it is IPv4 or IPv6. For desktop clients such as Claude Code or Curssubnet_calculator — Works out the network, broadcast, host range, netmask and wildcard for an IPv4 or IPv6 address with a prefix, and can split an IPv4 network bandwidth_calculator — Two calculations: monthly data transfer and average speed for a website (visitors, pages per visit, page size), or how long a file takes to chmod_calculator — Converts Unix file permissions between octal (755, 4755) and symbolic (rwxr-xr-x) form, shows the chmod command, explains who can read, writuptime_calculator — Turns an uptime percentage such as 99.9 into the downtime it allows per day, week, month, quarter and year, or turns a length of downtime incron_expression — Reads a classic 5-field cron expression (or @daily, @hourly, @reboot) and returns a plain-English description, the expanded form and the nexpunycode_convert — Converts international domain names between Unicode and Punycode (xn--) one name at a time, up to 20 names, and warns about mixed-script loodomain_name_ideas — Turns one to three keywords into about 60 domain name ideas (prefixes, suffixes, blends) plus common endings. Ideas only: availability is nospf_record_generator — Builds an SPF TXT record from a mail setup: sending IPs, mail providers such as Google or Microsoft, the a and mx mechanisms and soft or hardmarc_record_generator — Builds a DMARC TXT record for _dmarc.<domain>: policy, subdomain policy, percentage, report addresses and SPF and DKIM alignment. Returns throbots_txt_generator — Builds a robots.txt file: allow everything, block everything or custom Allow and Disallow paths, with sitemap URLs, a crawl delay and switchhtaccess_generator — Builds a commented .htaccess file for Apache and LiteSpeed: force HTTPS, www or non-www, 301 redirects, error pages, security headers, cachiNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.