FormatForge collection
Network & Web Tools
A practical toolkit for checking connection performance, public IP information, DNS records, TLS certificates, website responses, redirect chains, HTTP headers and browser user-agent strings. The collection is designed for website owners, developers, DevOps teams, SEO professionals, support engineers and students.
Featured diagnostic path
Start with the signal closest to the problem
Use connection tools for local speed problems, domain tools after DNS or certificate changes, and delivery tools when a deployment returns the wrong status, redirect or security headers.
What Sprint 3 adds
- ✓ Short-term caching for repeated public checks
- ✓ Basic per-connection abuse protection
- ✓ Response-time and security-header grading
- ✓ Clearer loading, timeout and blocked-target messages
- ✓ Richer DNS, SSL and redirect result presentation
Internet Speed Test
Measure approximate download, upload, ping and jitter in your browser.
Open tool →IP Address Checker
View the public IP and available connection-location headers.
Open tool →DNS Lookup
Query common A, AAAA, MX, TXT, CNAME, NS and SOA records.
Open tool →SSL Certificate Checker
Inspect certificate validity, issuer, names, protocol and expiry.
Open tool →Website Status Checker
Check a public URL's status code, final URL and response time.
Open tool →Redirect Checker
Trace HTTP redirect hops and identify the final destination.
Open tool →HTTP Headers Checker
Inspect response headers and common security-header coverage.
Open tool →User Agent Parser
Interpret a user-agent string in the browser.
Open tool →Connection checks
Start with the speed test and IP checker when troubleshooting a home, office or mobile connection. Repeat tests because Wi-Fi quality and shared traffic change over time.
Domain and certificate checks
Use DNS and SSL tools after changing hosting, mail, nameservers or certificates. Results can vary by cache and region, so compare with your provider.
Website diagnostics
Check status codes, redirect chains and response headers when validating a deployment or fixing broken internal links and security policies.
Recommended troubleshooting workflow
Connection
Run the speed test and IP checker to understand the current connection.
Domain
Inspect DNS records after nameserver, mail or hosting changes.
Security
Review the SSL certificate and important HTTP security headers.
Delivery
Check status codes and redirect chains before and after deployment.
Security and responsible use
Server-side URL checks accept only public HTTP and HTTPS destinations on standard ports. Private, local and reserved network addresses are blocked. Use the tools only for systems you are authorized to inspect, and do not treat an informational result as a complete security audit.
Frequently asked questions
Are these network tools free?
Yes. The Sprint 1 tools can be used without creating an account.
Do the website checkers access private networks?
No. Localhost, private IP ranges, reserved addresses and non-standard ports are blocked to reduce server-side request risks.
Are results permanent?
No. Most results are point-in-time observations and can change as DNS, certificates, hosting and routes change.
Why can results differ from another service?
Different resolver locations, server regions, caches, routes and browser conditions can produce different observations.