Web et SEO
Balises meta, Open Graph, robots.txt, sitemaps et utilitaires SEO
Free SEO and webmaster utilities for meta tags, Open Graph, robots.txt, sitemaps, DNS, and page checks.
Meta & social tags
Titles, descriptions, Open Graph and Twitter cards.
Générateur de Balises Meta
Generate HTML meta tags for SEO, social and technical use
Analyseur de Balises Meta
Analyze meta tags of any webpage by URL or pasted HTML
Générateur Open Graph
Generate Open Graph tags with a live social preview card
Générateur de Twitter Card
Generate Twitter Card meta tags with a live preview
Générateur d'URL Canonique
Generate canonical link tags and normalize URLs
Générateur de Slug d'URL
Convert any text into a clean URL-friendly slug
Crawl & index files
Robots.txt, XML sitemaps and heading structure checks.
Générateur de Robots.txt
Build a robots.txt file with user-agent rules visually
Générateur de Sitemap.xml
Generate a sitemap.xml from a list of URLs
Vérificateur de Titres HTML
Inspect h1-h6 heading structure and SEO hierarchy
Vérificateur de Favicon
Check which favicons a website declares and how they render
Site checks
Speed, SSL, DNS, redirects, links and accessibility.
Test de Vitesse de Site Web
Real browser-rendered GTmetrix-style report: grade, Core Web Vitals, page weight and fix recommendations
Vérificateur de Certificat SSL
Inspect the TLS certificate of any site - expiry, issuer, SANs and chain
Recherche DNS
Query A, AAAA, CNAME, MX, TXT, NS, SOA, PTR, SRV and CAA records for any domain
Recherche d'Adresse IP
Geolocate any IPv4 or IPv6 address - country, city, ASN, ISP and reverse DNS
Vérificateur de Redirections
Trace every redirect hop of a URL with status codes
Vérificateur de Liens Morts
Scan a page for broken links and see each status code
Vérificateur d'Accessibilité
Run quick accessibility checks on any page’s HTML
Vérificateur de Densité de Mots-clés
Free keyword density checker - analyze text or any URL for SEO
Network & server checks
Reach a host, trace a route, test an SMTP server or read a page as a crawler sees it.
Outil Ping
Measure latency, jitter and packet loss to any server - from our network, not yours
Recherche IP Inversée
Find the hostname behind an IP address - the PTR record mail servers and firewalls check
Testeur SMTP
Check that a mail server answers, negotiates TLS, and accepts your login - step by step
Email Junk-Folder Check
Score a draft against common junk-folder triggers before you send
Extracteur de Pages Web
Pull the title, metadata, headings, links, images and text out of any public page
Frequently asked questions
Yes. Use the meta and Open Graph generators in this category to build snippet-ready tags without an account.
Open Website Speed Test, enter a URL and review Core Web Vitals style metrics and recommendations.
No. Normal use does not require an account.