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isitdns

net.isitdns/isitdns
Nube e infraestructura Seguridad Público y accesible MCP 2026-07-28

Qué hace este MCP

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

Capacidades

Herramientas

8 herramientas
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.
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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.
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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).
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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.
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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.
Solo lectura Acceso externo
Esquema de entrada 
{'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.
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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.
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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.
Solo lectura Acceso externo Idempotente
Esquema de entrada 
{'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'}}}
Historial

Cambios recientes en herramientas

Eliminado
top_domains
1 de October de 2026 a las 02:50
Eliminado
resolver_status
1 de October de 2026 a las 02:50
Eliminado
resolver_history
1 de October de 2026 a las 02:50
Eliminado
ksk_board
1 de October de 2026 a las 02:50
Eliminado
dns_events
1 de October de 2026 a las 02:50
Añadido
path_receipt
1 de October de 2026 a las 02:50
Modificado
registration
1 de October de 2026 a las 02:50
Modificado
alias_chain
1 de October de 2026 a las 02:50
Modificado
sweep_domain
1 de October de 2026 a las 02:50
Modificado
dnssec_chain
1 de October de 2026 a las 02:50
Modificado
trace
1 de October de 2026 a las 02:50
Modificado
dig
1 de October de 2026 a las 02:50
Modificado
check_domain
1 de October de 2026 a las 02:50
Añadido
registration
29 de September de 2026 a las 02:59
Añadido
alias_chain
29 de September de 2026 a las 02:59
Añadido
dnssec_chain
29 de September de 2026 a las 02:59
Modificado
ksk_board
29 de September de 2026 a las 02:59
Modificado
dns_events
29 de September de 2026 a las 02:59
Modificado
top_domains
29 de September de 2026 a las 02:59
Modificado
resolver_history
29 de September de 2026 a las 02:59
Modificado
resolver_status
29 de September de 2026 a las 02:59
Modificado
trace
29 de September de 2026 a las 02:59
Modificado
check_domain
29 de September de 2026 a las 02:59
Modificado
sweep_domain
29 de September de 2026 a las 02:59
Modificado
dig
29 de September de 2026 a las 02:59
Añadido
sweep_domain
27 de September de 2026 a las 02:50
Modificado
top_domains
25 de September de 2026 a las 02:59
Añadido
ksk_board
17 de September de 2026 a las 12:54
Añadido
dns_events
17 de September de 2026 a las 12:54
Añadido
top_domains
17 de September de 2026 a las 12:54
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