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thenetworkery

DNS and email security diagnostics and fixes

3648 ms

answered our call 8 Nov, 02:57 UTC

State: Answered
Protocol: MCP 2025-06-18
Tools listed: 28
Answered: 3 of the last 3 calls

How to reach it

MCP, HTTPhttps://thenetworkery.com/mcp

What it can do

Tool	What it says it does
`bgp`	Origin AS, visibility, RPKI validity, upstreams and announced prefixes from the global routing table.
`blacklist`	Is an IP, a domain or its mail servers on the spam blocklists receivers use – and how to get delisted.
`create_webhook_url`	Creates a public URL that records every request sent to it (webhooks, callbacks) for 7 days, and returns its bin id and key for the other webhook tools.
`ct_search`	Every publicly logged certificate for a domain and its subdomains – find forgotten hosts and unexpected issuers.
`dn42_free`	Unregistered AS numbers, free IPv4 blocks and a random unused IPv6 /48 – checked against the live registry.
`dn42_peering_config`	WireGuard, BIRD 2 and RouterOS 7 configs for a DN42 peering, following the wiki conventions.
`dn42_registry`	Look up any DN42 object – AS, IP, prefix, maintainer, person or .dn42 domain – with everything linked to it.
`dns_lookup`	Every record for a name from its authoritative nameservers or a public resolver, or one record compared across 13 resolvers worldwide.
`dnssec`	Is the zone signed, does the chain of trust validate, and are the algorithms current?
`domain_report`	DNS, DNSSEC, email security, blocklists, certificates, HTTPS and registration in one report with a security grade (A+ to F) and what to fix first.
`email_auth`	SPF, DKIM, DMARC, MTA-STS, TLS-RPT and BIMI graded, with the exact records to fix what is missing.
`email_headers`	Paste a message's headers to see its route and delays, SPF, DKIM and DMARC results with alignment, and why it may have gone to spam.
`email_record_builder`	Build an SPF record from the services that send your mail, or a DMARC record from a policy, and compare it with the one you publish now.
`get_webhook_request`	One request received by a webhook URL in full (every header, the body, base64 if binary) with a curl command that sends it again.
`http_headers`	Redirect chain, response headers and a graded check of HSTS, CSP and the other security headers.
`jwt_decoder`	Decode a JSON Web Token's header and claims, check alg, exp, nbf and iat, and verify its signature if you give a key; the token is never stored.
`list_webhook_requests`	Requests a webhook URL received, oldest first: pass after_id for only newer ones, and wait_seconds to wait briefly for the next.
`mac_lookup`	Who made a network card, from the IEEE registry – and whether the address is randomised.
`mcp_server_test`	Connect to a remote MCP server like an AI assistant would: handshake, tools, resources, prompts, OAuth discovery and context cost, checked against the spec.
`nameserver_check`	Tests every nameserver of a domain directly: lame or unreachable servers, NS and glue mismatches, SOA serials, open recursion, TCP and EDNS.
`network_report`	Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.
`peeringdb`	A network’s peering policy, internet exchange ports, facilities and NOC contacts from PeeringDB.
`port_check`	Whether a TCP port is open, closed or filtered from the internet, from one timed connection from our server.
`reverse_dns`	The PTR name of an IP address, whether it resolves back to the same IP (FCrDNS), and whether it looks generic.
`rpki`	Whether a route is RPKI valid, invalid or not found, with the ROAs covering the prefix, max-length mistakes and how to fix them.
`ssl_check`	Certificate, chain, expiry, hostname match, key strength and the TLS version a server negotiates.
`subnet_calculator`	Subnet ranges, masks and splits for IPv4 and IPv6, IPv6 and EUI-64 address details, and merging lists into the fewest CIDRs.
`whois`	Who holds a domain, IP address or AS number – from the registry, via RDAP.

In its maker's words

DNS, email auth, TLS, BGP/RPKI, WHOIS and subnet tools with plain-English fixes, plus webhook URLs.

Website: thenetworkery.com/docs/mcp
Publisher: thenetworkery.com
Listed from: the official MCP Registry as com.thenetworkery/network-tools
Version: 1.1.0, updated 4 Nov 2026
Kinds of work: Domains and websites, Security and trust, Search and research

The domain it lives on

thenetworkery.com: registered 15 Jan 2012 (14 years ago), at Tucows Domains Inc., its name does not resolve now

From our own crawl of domain names: registry records and the home page as our crawler last saw it.

Every call we made

When	What happened	Time
8 Nov, 02:57 UTC	Answered	3648 ms
7 Nov, 23:39 UTC	Answered	2639 ms
7 Nov, 22:01 UTC	Answered	1986 ms

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