Networking & Developer Tools
Every network check, in one place.
NetKit brings DNS, certificate, IP, email and everyday developer tools together in one private, self-hosted panel, with monitoring, alerts, a status page and an API. Fast, private and ready for production.
- Nearly 150 tools in 21 categories
- No ads and no trackers
- An API with keys and an OpenAPI spec
The big picture.
A box of tools for the people who run networks and websites, a monitor that watches them, and an API for everything else.
The tool box
Nearly 150 tools built, in 21 categories sorted A to Z.
- DNS, WHOIS, certificates, IP and routing
- Email authentication, web, security and calculators
- Developer, DevOps and converter utilities
Monitoring and alerts
Watch what matters and hear about it first.
- Uptime, certificate expiry and domain expiry
- IP blocklist monitor
- Alerts by email, Slack, Teams, Discord or webhook
Your own panel
Self-hosted, with the controls a team needs.
- Invite your team, with two-factor sign-in
- IP allowlist, sessions and an audit log
- Backup and export, limits and retention
Use it from scripts
The same tools from cron jobs and monitoring.
- Consistent JSON responses
- API keys with per-key rate limits
- An OpenAPI spec for generating clients
The tools you reach for every day.
A selection from the 21 categories. Everything is sorted A to Z and searchable with ⌘K.
Network and IP
- Port checker, ping, traceroute and path MTU
- Subnet, supernet and VLAN calculators
- ASN, BGP prefix, RPKI and bogon checks
DNS and domains
- DNS lookup, dig and reverse DNS
- Propagation checked from resolvers worldwide
- DNSSEC, CAA and zone health checks
Email deliverability
- SPF, DKIM and DMARC checks
- SMTP test, header analyzer and blocklists
- BIMI, MTA-STS and DMARC report viewer
Certificates and security
- SSL/TLS checker and certificate decoder
- HTTP headers, CSP builder and password tools
- CSR and key generators, JWT decoder and signer
Web and performance
- Website status, redirects and response time
- HTTP/2 and HTTP/3, compression and CORS tests
- Cookies, page weight and mixed content scanner
Developer and DevOps
- JSON, YAML, XML, SQL and Markdown tools
- Regex tester, cURL converter and webhook tester
- Docker, Nginx, systemd and cron helpers
How it works.
Three steps from a question to a clear answer.
Pick a tool
Browse by category or press ⌘K and type. Every tool lives in one place.
Enter what to check
A domain, an IP address or a certificate. Paste a full address and it works out the rest.
Get a clear answer
Plain-English results with the raw records underneath, ready to copy into your zone file or ticket.
See it in action.
Illustrations of the tool catalogue, a DNS lookup and the monitoring view.
Illustrations with sample data, not live screens.
Request a demo or trial.
Tell us what you need to check or monitor and we'll arrange a walkthrough of NetKit. Prefer to talk? Call 020 3944 9897.