SEO Tools
SEO tools help with the parts of search optimization you control on your own pages: how a title and description read in results, which URLs crawlers may visit, how structured data describes a page and whether headings, links and images follow good practice. Generators build the code, checkers read HTML or text you paste, and none of them crawl your site.
Checks run on what you paste
Every SEO tool reads the HTML or text you paste, in your browser. No page is fetched and nothing you paste is sent to our servers, which suits drafts and staging pages.
Generators use your own words
The title and description generators fill common patterns with your keyword, benefit and brand, then show length. They do not invent claims about your page.
Lengths measured, not guessed
Title length is estimated in pixels, about 580, as well as characters, because results truncate by width. Descriptions are checked against a 120 to 160 character range.
Scores are labelled as checklists
The SEO Score and Page Speed checkers review on-page basics. They do not predict rankings or measure real load time, and the pages state this plainly.
The tools most visitors start with, and what each one is for.
Generate SEO-optimized title tags for your web pages.
Draft title tag options from a keyword, brand and benefit, and see each one's length in characters and estimated pixels.
Generate SEO-optimized meta descriptions for your web pages.
Draft meta description options for a page and check each one against the 120 to 160 character range.
Generate JSON-LD schema markup for SEO.
Generate JSON-LD for an article, product, organization, local business, FAQ, how-to, breadcrumb or event and copy it into your page.
Validate JSON-LD and schema.org structured data for SEO.
Validate JSON-LD, or page HTML that contains it, for syntax errors and missing required or recommended properties.
Generate a robots.txt file for your website.
Generate a robots.txt with blocked paths, exceptions, sitemap lines and optional rules for AI training crawlers.
Generate XML sitemaps for better search engine indexing.
Turn a list of page URLs into a valid sitemap.xml with duplicates removed and invalid lines reported.
Check canonical tags on any webpage to prevent duplicate content issues.
Check pasted HTML for a missing, duplicated, relative or conflicting canonical tag.
Check heading tag structure on any webpage.
Review a page's H1 to H6 outline for a missing H1, skipped levels and empty or repeated headings.
Check keyword density and frequency in your content.
Measure how often a target keyword appears and list the words and phrases you use most.
Check your website's SEO score with instant analysis of title, description, headings, and content.
Run a draft through a checklist of content basics such as length, subheadings, readability and keyword placement.
Short explainers that show how the maths or the file format works, and which tool to reach for next.
SEO Guides
How titles and descriptions appear in search results, what length limits really mean, what schema markup can and cannot do, and a workflow using free SEO tools.
Try it: Meta Title Generator
SEO Guides
Three small technical SEO pieces that are easy to get wrong: what robots.txt, XML sitemaps and canonical tags each control, common mistakes, and how to test them.
Try it: Robots.txt Generator
Each group explains what its tools are for, so you can find the right one without scrolling a long list.
Write and measure the text searchers see before they click: the title tag, the meta description and the URL slug. These tools show length against the limits where results are usually cut off.
Describe a page to search engines in JSON-LD. Build markup for common types such as articles, products, local businesses and events, then validate it for syntax errors and missing properties.
Control the preview card that appears when a page is shared. Generate Open Graph and Twitter Card tags, and preview how a title, description and image will look before you publish.
Guide crawlers to the right URLs: write a robots.txt that blocks only what you intend, list your pages in an XML sitemap and check that a page's canonical tag points where you expect.
Paste a draft to see how it reads and how it uses a target keyword: word count and reading time, keyword density, Flesch readability and a checklist of on-page content basics.
Paste a page's source to audit it: heading order, image alt text, link anchors and rel attributes, and a few static page-speed factors such as render-blocking scripts and lazy loading.
The schema validator checks the required and recommended properties Google documents for rich-result types, and the sitemap generator omits priority and change frequency by default because Google ignores them.
The canonical checker flags a missing or repeated tag, a tag outside the head, http URLs, fragments, tracking parameters and a noindex that contradicts the canonical.
Results come with a reason and a fix: a heading outline in page order, alt text status for every image, and a note for each failed content check.
Because you paste HTML or text instead of entering a URL, you can check a page before it is live, behind a login or on a staging server.
robots.txt, sitemap.xml and JSON-LD can be copied or downloaded, and meta tag generators escape quotes and angle brackets so your text cannot break the markup.
The SEO logic sits in shared code and is covered by automated tests: slug creation with accented and special characters, keyword statistics, robots.txt and sitemap output, readability formulas, title pixel estimates and JSON-LD validation. Rules such as the required schema properties come from Google's published structured-data documentation, and thresholds that are only conventions, like the 0.5 to 2.5 percent keyword range, are labelled as guides on the page. No tool fetches your site: each one analyzes the HTML or text you paste, so what you see is what the code contains. Pages say plainly when a score is a checklist, not a ranking prediction.
The checkers read code you paste, in your browser, rather than fetching a live page. Open the page, choose view-source, copy the HTML and paste it in. That lets you test drafts and staging pages. Note that headings, links or schema added by JavaScript after the page loads do not appear in view-source HTML, so a check reflects only what is in the code you paste.
Search results truncate by pixel width, not a fixed character count. Titles show roughly 580 pixels, which is often 50 to 60 characters, and the Meta Title Generator estimates that width. Descriptions usually display about 120 to 160 characters. Google may rewrite either when it finds a better match for the query, so write each to be accurate and unique to its page.
No. It cannot discover who links to you. It lists every link found in the HTML you paste, with its anchor text, whether it is internal or external and its rel attributes such as nofollow. That makes it useful for auditing your own internal linking and outbound links, not for measuring a backlink profile, which needs a crawl of the wider web.
No. It reviews pasted HTML for static factors: render-blocking scripts without async or defer, images without a loading attribute, the viewport and charset tags, stylesheet and inline style counts, and the title and meta description. For real timings and Core Web Vitals use a lab or field tool such as Lighthouse or Google's PageSpeed Insights.
They apply a content checklist: length of at least 300 words, subheadings, paragraph count, average sentence length, readability, links, and keyword use in the opening, in a heading and at 0.5 to 2.5 percent density. Google does not publish a target density or a score, so use the result to find gaps in a draft, not to predict rankings.
Not reliably. Robots.txt asks well-behaved crawlers not to visit a URL, but a blocked URL can still appear in results if other sites link to it, and a crawler that cannot fetch the page never sees a noindex tag on it. Use noindex or password protection for pages that must stay out of search. Google also ignores the crawl-delay line.
It makes a page eligible, nothing more. The Schema Markup Validator checks syntax plus the required and recommended properties, and date, URL and price formats, but it cannot confirm that Google will show a rich result, and Google has scaled back some types such as FAQ. Only mark up content visible on the page, and test with Google's Rich Results Test.
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