Robots.txt Generator
Generate a robots.txt file for your site.
- Browser-based
- No signup
SEO & Webmaster tools
Free SEO and webmaster tools for meta tags, redirects, sitemaps, robots.txt, schema markup, hreflang, and UTM campaign URLs.
Sitemap Generator
Generate a sitemap.xml from a list of URLs.
- Browser-based
- No signup
Meta Tag Generator
Generate SEO and social meta tags.
- Browser-based
- No signup
Canonical Tag Checker
Find and validate canonical link tags on a page.
- Browser-based
- No signup
Open Graph Preview
Preview Open Graph and Twitter Card tags.
- Browser-based
- No signup
Meta Tag Preview
Inspect title, meta, and link tags on a page.
- Browser-based
- No signup
Schema Markup Generator
Generate JSON-LD structured data markup.
- Browser-based
- No signup
HTTP Status Checker
Check the HTTP status code for a URL.
- Browser-based
- No signup
Robots.txt Tester
Test whether a URL is allowed in robots.txt.
- Browser-based
- No signup
Sitemap Validator
Validate sitemap.xml structure and URLs.
- Browser-based
- No signup
Hreflang Generator
Generate hreflang alternate link tags.
- Browser-based
- No signup
UTM Builder
Build campaign URLs with UTM parameters.
- Browser-based
- No signup
Redirect Checker
Inspect redirect hops and the final destination URL.
- Browser-based
- No signup
About seo & webmaster tools
SEO and webmaster tools on Utilnivo help you inspect and draft the technical pieces search engines and social platforms rely on: canonical tags, meta tags, Open Graph cards, redirect chains, HTTP status codes, robots rules, sitemaps, structured data, hreflang alternates, and UTM tracking URLs.
Generator tools—meta tags, robots.txt, sitemaps, schema markup, hreflang, and UTM parameters—run entirely in your browser. Checker and preview tools may fetch third-party URLs when your browser allows it; when CORS blocks a fetch, paste HTML or XML instead for reliable results.
Use Canonical Tag Checker and Meta Tag Preview before publishing template changes, Redirect Checker and HTTP Status Checker after migrations, and Robots.txt Tester plus Sitemap Validator before submitting URLs in Search Console.
Which tool should you choose?
- Draft head tags → Meta Tag Generator or Open Graph Preview.
- Validate indexing signals → Canonical Tag Checker, Robots.txt Tester, Sitemap Validator.
- Debug migrations → Redirect Checker or HTTP Status Checker.
- Campaign links → UTM Builder.
Frequently asked questions
Why do URL fetch tools sometimes fail?
Browsers block many cross-origin requests. Paste HTML, robots.txt, or sitemap XML when live fetch is blocked.
Are generated schema and meta tags guaranteed valid?
They are drafts based on your inputs. Validate with Google Rich Results Test or your CMS before publishing.