nslookup.io MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| NSLOOKUP_API_URL | No | Base URL for the nslookup.io API | https://www.nslookup.io |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| dns_lookupA | Look up all common DNS records (A, AAAA, NS, MX, TXT, CNAME, SOA) for a domain. Returns results from a specified DNS server. |
| dns_recordA | Look up a specific DNS record type for a domain. Supports 53 record types including A, AAAA, MX, TXT, CNAME, SOA, PTR, CAA, SRV, DNSKEY, DS, TLSA, HTTPS, SPF, and more. |
| dns_propagationA | Check DNS propagation for a domain across 18+ global DNS servers (Cloudflare, Google, Quad9, OpenDNS, regional servers, and authoritative nameservers). Shows if DNS changes have propagated worldwide. |
| webserversA | Get the IP addresses (both IPv4 and IPv6) for a domain by looking up A and AAAA records. Also returns the punycode and unicode domain representations. |
| ssl_certificateB | Check the SSL/TLS certificate for a domain. Returns issuer, expiry date, days until expiry, certificate chain validity, cipher strength, SAN domains, fingerprint, and TLS protocol version. |
| bimi_vmcB | Check BIMI (Brand Indicators for Message Identification) and VMC (Verified Mark Certificate) for a domain. Returns BIMI DNS record status, VMC certificate details, logo URL, trademark info, and expiry. |
| security_scanA | Run a security scan on a domain to detect DNS misconfigurations, missing SPF/DKIM/DMARC records, cookie security issues, and other web security vulnerabilities. Returns findings with severity levels (critical, high, medium, low, info). |
| uptime_checkA | Perform a one-time HTTP uptime check on a URL. Returns whether the site is up or down, HTTP status code, and response time in milliseconds. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 8 tools
Each tool has a clearly distinct purpose within the DNS/domain analysis domain. For example, dns_lookup retrieves all common records, while dns_record targets specific types, and security_scan focuses on vulnerabilities rather than basic lookups. There is no significant overlap that would cause misselection.
The naming follows a consistent snake_case pattern throughout, with clear verb_noun structures like dns_lookup and ssl_certificate. The only minor deviation is bimi_vmc, which uses an acronym-based name rather than a descriptive verb, but it still fits the overall style.
With 8 tools, this server is well-scoped for domain and DNS analysis. Each tool serves a specific function, such as DNS lookups, security scanning, and SSL checks, without redundancy. The count is appropriate for covering the domain comprehensively.
The tool set provides complete coverage for domain analysis, including DNS lookups (general, specific, propagation), security scans, SSL certificate checks, BIMI/VMC verification, uptime monitoring, and webserver IP retrieval. There are no obvious gaps, and agents can perform a full lifecycle of domain-related tasks.