Website & Performance Tools
Factual server TTFB measurements, HTTP compression verification, RFC 9116 security.txt generation, W3C CSP analysis, and client-side web server log parsing. Deep technical webmaster tooling with zero synthetic Lighthouse inflation. Built for fast, distraction-free workflows with local processing and zero clutter.
Meta Tag Generator
Generate responsive OpenGraph, Twitter Card, and Google Search preview meta tags.AutomateAutomated Draft Snapshot [1788992175029]Automated Draft Snapshot [1788992147372]d Draft Snapshot [1788992073898]Automated Draft Snapshot [1788992206551]
HTTP Header Viewer
Inspect HTTP response status, headers, and security configurations.
All Available Tools
26 toolsMeta Tag Generator
Generate responsive OpenGraph, Twitter Card, and Google Search preview meta tags.AutomateAutomated Draft Snapshot [1788992175029]Automated Draft Snapshot [1788992147372]d Draft Snapshot [1788992073898]Automated Draft Snapshot [1788992206551]
HTTP Header Viewer
Inspect HTTP response status, headers, and security configurations.
Redirect Checker
Trace complete 301, 302, and 307 HTTP redirect paths and status chains.
Server Status Checker
Verify web server availability, response times, and HTTP status codes.
Open Graph & Social Card Checker
Audit Facebook Open Graph and Twitter/X card tags with interactive social media previews.
Schema Markup Generator
Generate Schema.org-valid JSON-LD structured data for Organization, LocalBusiness, Article, Product, and more.
JSON-LD Schema Validator
Validate JSON-LD structured data against Schema.org types and Google Rich Result required fields.
Single-Page Broken Link Checker
Check HTTP status codes of links on a single web page to identify 404 dead links and broken redirects.
SSL / TLS Certificate Checker
Inspect SSL/TLS certificate validity, expiration date, issuer chain, SAN domains, and cipher protocols.
RDAP / Domain Registration Lookup
Lookup domain registration details, registrar, nameservers, status codes, and DNSSEC using official ICANN RDAP.
Domain Age Checker
Calculate the exact age, registration date, and expiration timeline of any domain name.
DNS Records Lookup
Inspect A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA DNS records for any domain.
Multi-Resolver DNS Checker
Compare DNS resolution and verify record consensus across Google Public DNS, Cloudflare, Quad9, and OpenDNS resolvers.
SPF Record Validator
Validate Sender Policy Framework (SPF) records, test mechanisms, count DNS lookups, and prevent PermError.
DMARC Record Checker
Inspect DMARC policies (p=reject, quarantine, none), reporting tags (rua, ruf), and alignment settings.
DKIM Record Lookup
Lookup and inspect DKIM public key TXT records by domain and selector to verify email signing.
Redirect Rule Generator
Generate redirect code for Apache .htaccess, Nginx, Cloudflare, Netlify, and Next.js.
HTML Minifier & Formatter
Minify HTML code to reduce page payload or beautify unformatted markup with clean indentation.
CSS Minifier & Beautifier
Minify CSS stylesheets to eliminate comments and whitespace or beautify minified styles with readable indentation.
Website Performance Audit
Flagship audit analyzing server TTFB, compression, caching, render-blocking scripts, and image layout space.
Security.txt Generator & Validator
Generate and audit RFC 9116 security.txt vulnerability disclosure files with expiration checks.
Ads.txt & App-ads.txt Checker & Generator
Audit, validate, and generate IAB Tech Lab ads.txt and app-ads.txt files with duplicate and conflict detection.
Sellers.json Checker
Verify programmatic ad seller identity and publisher account legitimacy via IAB Sellers.json specifications.
Bulk URL Status & Redirect Checker
Check HTTP status codes, redirect chains, and final destination URLs for up to 25 links in parallel.
Content Security Policy (CSP) Analyzer & Builder
Audit, evaluate risks, and visually construct W3C Content Security Policy Level 3 directives.
Web Server Log Analyzer
100% private, client-side log analyzer for Apache and Nginx access logs with 404 and crawler detection.
All tools in this collection operate independently. Whether you need immediate metrics or batch transformations, each utility loads with zero setup overhead and preserves your privacy.
We design every tool to run locally in your browser wherever computationally possible. No personal data or document contents are transmitted to external servers.
Why are proper meta tags important for SEO?
Accurate meta titles, descriptions, and OpenGraph tags ensure search engines index your pages correctly and social platforms render high-fidelity link preview cards.
How do robots.txt directives work?
Robots directives tell search crawlers which paths they may crawl and where to find your XML sitemap to ensure efficient indexing.