SEO & Web Content Tools
Check meta title and description lengths, generate Schema.org JSON-LD, build UTM campaign URLs, check keyword density, validate canonical URLs, generate Twitter cards, and more — all in your browser.
Most popular
- seoTitle Check● ready
Paste a meta title to check its character count and whether it falls in the recommended 30–60 range, with a Google-style preview of how it truncates.
- seoDesc Check● ready
Paste a meta description to check its length and get a too-short, optimal or too-long verdict, so you can see whether Google is likely to cut it off.
- seoJSON-LD Gen● ready
Fill in fields for Article, Product, FAQ, LocalBusiness, Event, or BreadcrumbList to get valid JSON-LD ready to paste into your page.
- seoUTM Builder● ready
Enter a base URL and campaign parameters (source, medium, name, term, content) to get a properly-formatted URL with UTM query parameters.
- seoKeyword Density● ready
Paste content and target keywords to see how often each keyword appears, its density as a percentage, and whether it is in the optimal 1-3% range.
Meta Tags
- seoTitle Check● ready
Paste a meta title to check its character count and whether it falls in the recommended 30–60 range, with a Google-style preview of how it truncates.
- seoDesc Check● ready
Paste a meta description to check its length and get a too-short, optimal or too-long verdict, so you can see whether Google is likely to cut it off.
- seoCanonical Check● ready
Enter a URL to fetch its canonical link, check for self-referencing, and see whether it matches the current URL to catch duplicate content issues.
- seoRobots Meta● ready
Pick index or noindex and follow or nofollow to get the correct robots meta tag, with a note on what each directive does. Free, and in your browser.
Structured Data
- seoJSON-LD Gen● ready
Fill in fields for Article, Product, FAQ, LocalBusiness, Event, or BreadcrumbList to get valid JSON-LD ready to paste into your page.
- seoSD Validator● ready
Paste JSON-LD and validate it against common Schema.org types (Article, Product, FAQ, BreadcrumbList) with required field checks.
- seoHreflang● ready
Enter URLs for different language/region versions of a page and get the complete set of hreflang link elements with x-default.
Tracking & Content
- seoUTM Builder● ready
Enter a base URL and campaign parameters (source, medium, name, term, content) to get a properly-formatted URL with UTM query parameters.
- seoKeyword Density● ready
Paste content and target keywords to see how often each keyword appears, its density as a percentage, and whether it is in the optimal 1-3% range.
- seoTwitter Cards● ready
Fill in card type, title, description, image, and site handle to generate Twitter Card meta tags with a live preview of the card appearance.
- seoLink Check● ready
Paste URLs to validate their format, check for missing protocols, double slashes, spaces, and other common link errors before publishing.
- seoSitemap Plan● ready
Paste your URLs and get recommended priority (0.0-1.0) and changefreq values based on page type and content freshness.
All tools
- seoTitle Check● ready
Paste a meta title to check its character count and whether it falls in the recommended 30–60 range, with a Google-style preview of how it truncates.
- seoDesc Check● ready
Paste a meta description to check its length and get a too-short, optimal or too-long verdict, so you can see whether Google is likely to cut it off.
- seoJSON-LD Gen● ready
Fill in fields for Article, Product, FAQ, LocalBusiness, Event, or BreadcrumbList to get valid JSON-LD ready to paste into your page.
- seoHreflang● ready
Enter URLs for different language/region versions of a page and get the complete set of hreflang link elements with x-default.
- seoUTM Builder● ready
Enter a base URL and campaign parameters (source, medium, name, term, content) to get a properly-formatted URL with UTM query parameters.
- seoKeyword Density● ready
Paste content and target keywords to see how often each keyword appears, its density as a percentage, and whether it is in the optimal 1-3% range.
- seoCanonical Check● ready
Enter a URL to fetch its canonical link, check for self-referencing, and see whether it matches the current URL to catch duplicate content issues.
- seoTwitter Cards● ready
Fill in card type, title, description, image, and site handle to generate Twitter Card meta tags with a live preview of the card appearance.
- seoLink Check● ready
Paste URLs to validate their format, check for missing protocols, double slashes, spaces, and other common link errors before publishing.
- seoRobots Meta● ready
Pick index or noindex and follow or nofollow to get the correct robots meta tag, with a note on what each directive does. Free, and in your browser.
- seoSitemap Plan● ready
Paste your URLs and get recommended priority (0.0-1.0) and changefreq values based on page type and content freshness.
- seoSD Validator● ready
Paste JSON-LD and validate it against common Schema.org types (Article, Product, FAQ, BreadcrumbList) with required field checks.
About SEO & Web Content Tools
SEO tools help you optimize web pages for search engines. Validate meta tags, generate structured data, build UTM tracking URLs, check keyword density, and plan sitemaps — everything runs locally with instant results.
Related categories
Frequently asked questions
What is JSON-LD structured data?
JSON-LD is a JSON-based format for embedding Schema.org structured data in web pages. It helps search engines understand your content and can enable rich results like star ratings and FAQs in search snippets.
What is a UTM parameter?
UTM (Urchin Tracking Module) parameters are URL query strings used by analytics tools to track the source, medium, and campaign of website traffic.