NewFeatured
Broken Link Checker
Redirects & Status
Find broken links on a page from extracted URLs.
Free online utilities
SEO & Webmaster Tools
Analyze your website, improve search visibility, fix technical SEO issues, and grow organic traffic with practical webmaster tools.
- Easy to use
- Fast to start
- Clear processing
- No registration
Quick answer
What SEO tools does Utilnivo offer?
Utilnivo SEO tools inspect meta tags, headings, canonicals, redirects, robots.txt, sitemaps, and schema markup. Most audits run in your browser so page HTML and URLs are not stored on Utilnivo servers.
Spotlight
New & Featured SEO & Webmaster Tools
24 tools
- NewFeatured
Broken Link Checker
Redirects & Status
Find broken links on a page from extracted URLs.
- Featured
Canonical Tag Checker
Metadata
Find and validate canonical link tags on a page.
- NewFeatured
Core Web Vitals Explainer
Website Diagnostics
Learn what LCP, INP, and CLS mean for page experience.
- NewFeatured
Heading Structure Checker
Metadata
Audit H1–H6 heading hierarchy on a page.
- Featured
Hreflang Generator
Website Diagnostics
Generate hreflang alternate link tags.
- Featured
HTTP Header Checker
Tools
Inspect HTTP response headers for a URL.
- Featured
HTTP Status Checker
Redirects & Status
Check the HTTP status code for a URL.
- NewFeatured
Keyword Density Checker
Metadata
Measure keyword frequency and density in body text.
- NewFeatured
Link Extractor
Redirects & Status
Extract all links from HTML with anchor text.
- Featured
Meta Tag Analyzer
Metadata
Analyze title, meta, robots, canonical, and link tags in page HTML.
- Featured
Meta Tag Generator
Metadata
Generate SEO and social meta tags from your inputs.
- Featured
Open Graph Preview
Social Preview
Preview Open Graph and Twitter Card tags.
- Featured
Redirect Checker
Redirects & Status
Inspect redirect hops and the final destination URL.
- Featured
Robots.txt Generator
Sitemap & Robots
Generate a robots.txt file for your site.
- Featured
Robots.txt Tester
Sitemap & Robots
Test whether a URL is allowed in robots.txt.
- Featured
Schema Markup Generator
Schema
Generate JSON-LD structured data markup.
- NewFeatured
Schema Validator
Schema
Validate JSON-LD structured data blocks in HTML.
- NewFeatured
Security Headers Checker
Tools
Check CSP, HSTS, and other security response headers.
- NewFeatured
SERP Snippet Preview
Social Preview
Preview how a page title and description may look in Google search.
- Featured
Sitemap Generator
Sitemap & Robots
Generate a sitemap.xml from a list of URLs.
- Featured
Sitemap Validator
Sitemap & Robots
Validate sitemap.xml structure and URLs.
- NewFeatured
Social Sharing Preview
Social Preview
Preview Open Graph and Twitter Card share appearances.
- NewFeatured
URL Slug Generator
Tools
Turn titles into clean, SEO-friendly URL slugs.
- Featured
UTM Builder
Tools
Build campaign URLs with UTM parameters.
Complete SEO & Webmaster tool index (24)
- Broken Link Checker
- Canonical Tag Checker
- Core Web Vitals Explainer
- Heading Structure Checker
- Hreflang Generator
- HTTP Header Checker
- HTTP Status Checker
- Keyword Density Checker
- Link Extractor
- Meta Tag Analyzer
- Meta Tag Generator
- Open Graph Preview
- Redirect Checker
- Robots.txt Generator
- Robots.txt Tester
- Schema Markup Generator
- Schema Validator
- Security Headers Checker
- SERP Snippet Preview
- Sitemap Generator
- Sitemap Validator
- Social Sharing Preview
- URL Slug Generator
- UTM Builder
- Free SEO & Webmaster Tools
- No Account Required
- Runs in Your Browser
- Privacy Conscious
- Clear Processing
Category guide
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—work on your device. Checker and preview tools may fetch other websites when allowed; when live fetch is blocked, 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.
Pair generators with validators: build a sitemap with Sitemap Generator then validate it with Sitemap Validator; draft robots rules with Robots.txt Generator then test paths in Robots.txt Tester. For campaigns, UTM Builder creates tagged links you can shorten with the URL Shortener when you need cleaner share URLs.
These utilities complement developer formatters and business invoicing tools—they focus on crawlability, index signals, and share previews rather than general coding tasks.
International sites can draft hreflang alternates with Hreflang Generator, then confirm canonical and language tags with Canonical Tag Checker and Meta Tag Preview. Schema Markup Generator helps you publish FAQ, Article, or Organization JSON-LD that matches what you already show on the page. Run checks after every deploy so redirects, status codes, and robots rules still match what you intended. None of these tools require an account.
Browse the full seo & webmaster hub or jump into a subcategory from the category chips.
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.
Which SEO tool should I use first on a new site?
Start with Meta Tag Generator and Sitemap Generator, then validate with Meta Tag Preview and Sitemap Validator before requesting indexing in Search Console.