Website & DNS Tools
Web assurance - 19 tools
- Authorized Port Range Checker Check a TCP port range on a host you own or are authorized to test.
- Authorized Single Port Checker Check whether one TCP port is reachable on a host you own or are authorized to test.
- DKIM Checker Check a DKIM selector host with DNS lookup.
- DMARC Checker Check a domain's DMARC TXT record with local DNS lookups only.
- DNS Lookup Resolve hostnames to addresses and reverse DNS using standard lookup APIs.
- DNS Propagation Checker Run safe DNS lookups for a domain without external APIs.
- Email Deliverability Tester Review public MX, SPF, DKIM, and DMARC readiness signals for a domain without sending...
- HTTP Header Checker Fetch HTTP response headers without using a third-party API.
- IP Geolocation Lookup Resolve IP registry data, reverse DNS, and WHOIS-based location hints fully offline fr...
- MX Record Checker Check mail-related DNS information for a domain.
- My IP Address Show the visitor client IP using Cloudflare and forwarded proxy headers without using...
- Ping Tool Send ICMP pings and measure latency, packet loss, and jitter.
- Redirect Checker Follow redirect chains and inspect every hop.
- Response Time Checker Measure how long a request takes from send to first response.
- SPF Record Checker Check SPF-related DNS results for a domain.
- SSL Checker Inspect TLS certificate details, chain status, and protocol information.
- SSL Expiry Reminder Inspect certificate expiry for an authorized HTTPS host.
- Website Status Checker Check whether a website responds successfully and capture timing plus status code.
- WHOIS Lookup Query WHOIS servers over the standard TCP protocol and show the raw registry response.