FreeNo signupPrivacy-conscious

Find what's wrong with your website.

Diagnose broken pages, indexing, DNS, SSL, privacy, performance, and AI visibility without creating an account.

Not sure which check?

Start here

Popular checks

Browse all tools
01

Broken Link Checker

Find broken internal and external links quickly.

Website Health

02

Indexability Checker

Detect noindex, robots, and canonical conflicts.

Website Health

03

DNS Lookup

Query A, MX, CNAME, TXT, NS, and SOA records.

Domain & DNS

04

SSL Checker

Verify certificate chain, validity, and expiry.

Domain & DNS

05

VPN Detection

Check whether your connection looks like VPN traffic.

IP & Privacy

06

IP Location Accuracy Test

Compare geolocation precision across providers.

IP & Privacy

Problem first

Choose what you need to fix

Pages aren't indexingCheck robots, canonicals, and noindex signals.Visitors see errorsFind broken internal and external links.Domain or email isn't workingInspect DNS, mail, SSL, and domain health.Check whether my VPN is activeInspect the connection and common leak signals.

Connected checks

A complete website health workflow

Enter a target once, then follow the evidence from broken pages through indexability and sitemap health.

  1. 1

    Broken Link Checker

    Find failed pages and references.

  2. 2

    Redirect Checker

    Trace every hop and loop.

  3. 3

    Indexability Checker

    Inspect robots, canonical, and noindex.

  4. 4

    Meta Tags Checker

    Review titles, descriptions, and social data.

  5. 5

    Sitemap Validator

    Confirm search engines can process your URL list.

Learn, then check

Guides and direct answers

Networking · 8 min read

How to Find Your IP Address on Any Device (2025 Guide)

Complete guide to finding your public and private IP address on Windows, Mac, Linux, iPhone, and Android. Includes online tools and troubleshooting tips.

Read guide Networking · 10 min read

IPv4 vs IPv6: Complete Guide to Internet Protocols in 2025

Understand the key differences between IPv4 and IPv6, why the transition matters, and how it affects your network. Includes migration guide for businesses.

Read guide Performance · 9 min read

How to Check Internet Speed: Complete Testing Guide 2025

Learn how to accurately test your internet speed, understand Mbps and latency, and troubleshoot slow connections. Perfect for gamers and streamers.

Read guide

Complete library

Browse every tool family

Website Health 11
Advanced Website CheckRedirect CheckerMeta Tags CheckerBroken Link CheckerHTTP Headers ViewerRobots.txt TesterSitemap ValidatorSocial Preview TesterIndexability CheckerKeyword ExtractorSecurity Headers Checker
Domain & DNS 8
SuperToolDNS LookupSSL CheckerPort ScannerWHOIS LookupPing TestTracerouteURL Encoder / Decoder
IP & Privacy 15
What Is My IPIP LocationIPv4 vs IPv6ISP InfoIP InformationDNS Leak TestVPN DetectionProxy CheckWebRTC Leak TestBrowser InfoWhat Websites See About YouBrowser Fingerprint TestDNS Error CheckerIP Location Accuracy TestIPv6 Adoption Dashboard
Performance 1
Speed Test
AI Visibility 4
llms.txt Generator + Availability CheckerAI Citation Readiness CheckerFAQ Schema + AEO GeneratorAI Snippet Optimizer

Your connection

Need IP or privacy details?

The public-IP dashboard now lives where it belongs: inside the IP and privacy workflow.

See my public IPBrowse privacy checks

Frequently asked questions

Is y4yes free to use?

Yes. Core diagnostics are free and require no account.

Which website check should I run first?

Start with broken links and indexability, then check redirects, metadata, and sitemap health.

Does y4yes store the website I check?

The redesign avoids sending entered targets in product analytics. Individual tool privacy details are explained on their pages.