Serveur MCP

isitdns

net.isitdns/isitdns
Cloud et infrastructure Sécurité Public et accessible MCP 2026-07-28

Ce que fait ce MCP

Provides live DNS lookups, delegation tracing, resolver monitoring, outage history, DNSSEC checks, and domain configuration audits.

alias_chain
Follow a CNAME chain
Use when a name is a CNAME and the person asks where it leads. Returns each hop with its target and TTL, and how it ends: addresses, none, a resolver failure, NXDOMAIN (dangling), a loop, or an inside name.
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['name'], 'properties': {'name': {'type': 'string', 'description': 'The name to follow, e.g. www.example.com. Also as "domain"; a URL is read as its host.'}}}
check_domain
Check a domain
Use when a domain or website is not working or not resolving (is it DNS?): one call. The first line says whether the name resolves; then the eleven-check audit of its zone, each row ok, warn, fail or skipped and why.
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['name'], 'properties': {'from': {'enum': ['north-america', 'europe'], 'type': 'string', 'description': 'Ask from the probe in this region'}, 'name': {'type': 'string', 'description': 'The domain to audit. Also as "domain"; a URL is read as its host.'}}}
dig
dig
Use for one exact question to one public resolver, not as the first call for a site that is not working. Returns records, flags, rcode, EDE and latency; DoH from the edge, or Do53 from a region's probe (from).
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['name'], 'properties': {'cd': {'type': 'boolean', 'default': False, 'description': 'Ask the resolver not to validate'}, 'ecs': {'type': 'string', 'description': 'EDNS Client Subnet, e.g. 192.0.2.0/24'}, 'from': {'enum': ['north-america', 'europe'], 'type': 'string', 'description': 'Ask from the probe in this region'}, 'name': {'type': 'string', 'description': 'The name, e.g. _dmarc.example.com. Also as "domain"; a URL is read as its host.'}, 'nsid': {'type': 'boolean', 'default': False, 'description': 'Request NSID (RFC 5001)'}, 'type': {'type': 'string', 'default': 'A', 'description': 'Record type, e.g. A, MX, TXT, DS, HTTPS, or TYPE<n>'}, 'norec': {'type': 'boolean', 'default': False, 'description': 'Clear RD, like dig +norec'}, 'dnssec': {'type': 'boolean', 'default': True, 'description': 'Set the DO bit and read AD'}, 'family': {'enum': ['v4', 'v6', 'both'], 'type': 'string', 'default': 'v4', 'description': 'Address family to dial'}, 'resolver': {'type': 'string', 'default': 'cloudflare', 'description': 'A board resolver id (cloudflare, google, quad9, opendns, adguard, cleanbrowsing, controld, quad9-unfiltered, adguard-family, cleanbrowsing-family, adguard-unfiltered, opendns-familyshield, nextdns, cloudflare-malware, cloudflare-family, mullvad-base, dns4eu-protective), an alias such as 8.8.8.8, or all for the tier-1 operators side by side.'}}}
dnssec_chain
Walk the DNSSEC chain
Use when a name fails validation or the person asks whether its DNSSEC chain holds. Returns each signed zone cut from the root to the answer and the first link that breaks, or where it goes insecure.
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['name'], 'properties': {'name': {'type': 'string', 'description': 'The name, e.g. www.example.com. Also as "domain"; a URL is read as its host.'}, 'type': {'type': 'string', 'default': 'A', 'description': 'The record type to check at the end of the chain'}}}
path_receipt
Path receipt
Use when the person wants proof of what their resolver sends. First call: one dig to run. Second, with the nonce: what we saw (resolver address, UDP/TCP, DO, CD, EDNS size, cookie, ECS, case, arrivals) and the signed TXT.
Lecture seule Accès externe
Schéma d’entrée
{'type': 'object', 'properties': {'nonce': {'type': 'string', 'description': 'From the first call'}}}
registration
Registration status (RDAP)
Use when a domain has vanished from DNS and the person asks whether it expired or is on hold. Returns the registry's RDAP statuses and what each means for resolution, the dates and its nameservers; no contacts.
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'description': 'The domain or a hostname under it. Also as "name"; a URL is read as its host.'}}}
sweep_domain
Sweep a domain across its authoritative servers
Use after a zone change, when the person asks whether the authoritative servers agree. Returns each nameserver's answer to each name and type you list, the disagreements, lame or silent servers, and CAA and ACME readiness.
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['domain'], 'properties': {'names': {'type': 'array', 'items': {'type': 'string'}, 'description': 'Relative labels to ask, "@" for the apex. Default: @, www, _dmarc, _acme-challenge'}, 'types': {'type': 'array', 'items': {'type': 'string'}, 'description': 'Record types. Default: SOA, NS, A, AAAA, MX, TXT, CAA'}, 'domain': {'type': 'string', 'description': 'The zone or name to sweep, e.g. example.com. Also as "name"; a URL is read as its host.'}}}
trace
Delegation walk
Use when the person wants to walk the delegation for a name, root to authoritative, like dig +trace. Returns each referral and glue, lame or unreachable servers, the final answer and a verdict.
Lecture seule Accès externe Idempotent
Schéma d’entrée
{'type': 'object', 'required': ['name'], 'properties': {'name': {'type': 'string', 'description': 'The name to walk. Also as "domain"; a URL is read as its host.'}, 'type': {'type': 'string', 'default': 'A', 'description': 'Record type for the final question'}}}
Supprimé
top_domains
1 October 2026 02:50
Supprimé
resolver_status
1 October 2026 02:50
Supprimé
resolver_history
1 October 2026 02:50
Supprimé
ksk_board
1 October 2026 02:50
Supprimé
dns_events
1 October 2026 02:50
Ajouté
path_receipt
1 October 2026 02:50
Modifié
registration
1 October 2026 02:50
Modifié
alias_chain
1 October 2026 02:50
Modifié
sweep_domain
1 October 2026 02:50
Modifié
dnssec_chain
1 October 2026 02:50
Modifié
trace
1 October 2026 02:50
Modifié
dig
1 October 2026 02:50
Modifié
check_domain
1 October 2026 02:50
Ajouté
registration
29 September 2026 02:59
Ajouté
alias_chain
29 September 2026 02:59
Ajouté
dnssec_chain
29 September 2026 02:59
Modifié
ksk_board
29 September 2026 02:59
Modifié
dns_events
29 September 2026 02:59
Modifié
top_domains
29 September 2026 02:59
Modifié
resolver_history
29 September 2026 02:59
Modifié
resolver_status
29 September 2026 02:59
Modifié
trace
29 September 2026 02:59
Modifié
check_domain
29 September 2026 02:59
Modifié
sweep_domain
29 September 2026 02:59
Modifié
dig
29 September 2026 02:59
Ajouté
sweep_domain
27 September 2026 02:50
Modifié
top_domains
25 September 2026 02:59
Ajouté
ksk_board
17 September 2026 12:54
Ajouté
dns_events
17 September 2026 12:54
Ajouté
top_domains
17 September 2026 12:54