"Using a Browser with Dev Tools to Debug a Web Application" matching MCP connectors:

Scan/purge hidden text & score web domains: TLS, DNS, headers, speed. Free scans, $0.01 actions.

Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.

Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di

DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

Domain/IP intelligence, web page capture and search APIs

Free anonymous website, DNS, email and TLS checks, plus read-only access to your monitors.

Free SPF, DKIM, DMARC, MX deliverability check with graded shareable reports, plus referral terms

Free uptime monitoring: HTTP/TCP/TLS/DNS checks, cron heartbeats, status pages, incident tools.

Custom domains API for SaaS: connect, verify, and manage customer domains, SSL, and DNS

Monitoring for agencies — uptime, SSL, DNS, blocklists, AI visibility, MCP health. 8 no-auth tools.

Domain availability across 1,200+ TLDs, with renewal price, minimum term and eligibility

DNS, WHOIS/RDAP, DMARC/SPF, LEI, sitemap, web extract, VAT, QR. Paid per call in USDC, no signup.

Agent-native web hosting — deploy sites, manage DNS, register domains, scale infrastructure

GreyNoise Community MCP — internet scanner classification (free tier with key)

OpenCellID MCP — cell tower geolocation database (free with key)

The web capability layer for AI agents: render, extract, DNS, SSL, WHOIS & more via x402.

Read devices, users, keys, ACLs and DNS for a tailnet; manage devices, routes and auth keys.

Watch domains and forecast when they drop; check a name's domain, handles, and trademark.

Domain attribution and correlation for AI agents, with confidence and per-signal evidence.

Validate whether an IP address belongs to Bingbot. Remote MCP server exposing a validate_ip tool.