All-in-one internet ops toolkit
Fix DNS, IP, SSL, SEO, and AI visibility issues in minutes.
Fast, privacy-first diagnostics for developers, SEOs, sysadmins, and website owners.
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Open Full DirectoryFeatured Tools
High-intent checks used most often by teams and solo operators.
SuperTool
Run 20+ checks in one view for a domain or host.
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DNS Lookup
Query A, MX, CNAME, TXT, NS, and SOA records.
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What Is My IP
Check your public IPv4/IPv6, ISP, and location.
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SSL Checker
Verify certificate chain, validity, and expiry.
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Port Scanner
Scan common TCP ports for open services.
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Speed Test
Measure latency, jitter, download, and upload speed.
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Redirect Checker
Trace redirect chains and detect loops.
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Meta Tags Checker
Audit title tags, meta descriptions, and canonicals.
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Broken Link Checker
Find broken internal and external links quickly.
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llms.txt Generator + Validator
Generate and validate llms.txt for AI discoverability.
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AI Citation Readiness Checker
Evaluate citation readiness for AI answer engines.
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Popular Workflows
Check DNS, SSL, and redirect chain health
Audit indexability, links, and metadata
Improve AI visibility and citation readiness
Test privacy leaks and fingerprint exposure
Tool Categories
SEO / Website Audit Tools
Redirect, indexing, metadata, and crawlability checks.
Privacy & Security Tools
Browser exposure, DNS leaks, VPN and proxy checks.
AI / AEO Tools
Schema, llms.txt, snippets, and citation readiness.
Diagnostic / Research Tools
Deep-dive resources for investigations and benchmarking.
Why teams choose y4yes
Fast
Tools are optimized for quick checks and repeated workflows.
Free
Core diagnostics and audit workflows are available without paywalls.
Privacy-conscious
Built for users who care about minimizing unnecessary data exposure.
No install required
Run checks in-browser from desktop or mobile with no setup friction.
Frequently Asked Questions
What makes y4yes different from single-purpose tools?
y4yes combines network diagnostics, SEO audits, privacy checks, and AI visibility tools in one platform, so you can run full workflows without switching sites.
Is y4yes free to use?
Yes. Core tools are free and available without account setup.
Which tools should I run first for technical SEO?
Start with Redirect Checker, Robots.txt Tester, Sitemap Validator, Indexability Checker, and Meta Tags Checker.
How do I optimize for AI answer engines?
Use FAQ Schema Generator, llms.txt Generator, AI Snippet Optimizer, and AI Citation Readiness Checker to improve structure and citation potential.
Can I use y4yes for privacy testing?
Yes. You can test DNS leaks, VPN/proxy detection, WebRTC leaks, and browser fingerprint exposure.