SEO Tools
Audit what your pages actually publish — titles, headings, redirects, sitemaps and robots rules.
Search engines only ever see what your server sends them. These tools read exactly that: the HTML, the headers, the sitemap and the robots rules, and explain what a crawler would make of it.
Nothing here guesses at search volume or invents a difficulty score. Every number comes from your own page.
- On-Page SEO Checker Audit any page against 14 on-page factors and get a graded report explaining what each one means.
- Keyword Density Checker See which words and phrases a page actually emphasises, and whether that matches what you intended.
- Redirect Checker Follow every hop between a URL and its destination, with the status code and timing for each one.
- Sitemap Checker Fetch and validate an XML sitemap, count its URLs and flag the limits that make search engines ignore it.
- Robots.txt Tester Fetch a live robots.txt and test whether a specific crawler is allowed to reach a specific path.
- SERP Snippet Preview See how a title and description will look in search results, measured in pixels rather than characters.
- Broken Link Checker Test every link on a page and see which ones return errors, with the status code for each.
- Meta Tag Generator from Keywords Turn a keyword and a benefit into title options, a meta description and a full head block, sized to fit.
Technical SEO you can actually verify
Most SEO advice is contested. Very little of it can be checked. This category deals with the part that can: what your pages actually publish, what your server actually returns, and what a crawler is actually permitted to reach.
None of it will make mediocre content rank. All of it can stop good content from ranking, which is why it is worth ruling out first.
Which tool for which job
| What you want to know | Tool |
|---|---|
| Is this page technically sound? | On-Page SEO Checker |
| What is this page actually about, according to its own words? | Keyword Density Checker |
| Why is this URL losing authority on the way to its destination? | Redirect Checker |
| Does my sitemap work, and how many URLs does it declare? | Sitemap Checker |
| Can Googlebot — or GPTBot — reach this path? | Robots.txt Tester |
| Will my title fit in the search result? | SERP Snippet Preview |
| Which links on this page are broken? | Broken Link Checker |
| I need a title and description for a new page | Meta Tag Generator |
The order that finds problems fastest
Start with the Robots.txt Tester. If crawlers are blocked, nothing else on this list matters, and a misplaced Disallow: / is a genuinely common accident after a staging site goes live.
Then the On-Page SEO Checker for the page you care about most, because it covers fourteen factors at once and tells you which are worth your afternoon. Then the Redirect Checker on your main entry URLs — chains of three or four hops are common after a site has changed platform once or twice, and each hop costs time and a little authority.
Sitemaps and broken links come last. They are worth fixing, but they are rarely why a page is not ranking.
What no free tool can tell you
Backlinks. Search volume. Your actual position for a term. All three require licensed data from a web-scale crawler, and any free tool that displays them is either reselling a paid API or generating plausible-looking numbers. The Off-Page SEO Checker is explicit about this — it reports real, clickable mentions from public sources and states plainly what is missing.
For your own sites, Google Search Console gives you impressions, positions and the links Google actually knows about, for free and more authoritatively than any third party. It should be the first thing you set up, before any tool on this page.
Pixels, not characters
Titles are truncated by width, not by letter count. Sixty characters of capitals is far wider than sixty characters of lowercase, so a character count will confidently pass a title that gets cut off in the result. Every tool here that measures a title measures it in pixels, which is what actually determines whether your last word survives.
Common questions
Will these tools improve my rankings?
They will remove technical obstacles, which is a different thing. If a page is blocked, slow, mis-titled or buried behind three redirects, fixing that lets its content compete. If the content is not worth ranking, no amount of technical tidying changes the outcome.
Why is there no keyword volume or rank tracking?
Both need licensed data that costs money per query. A free tool showing them is reselling a paid API or inventing figures. Google Search Console gives you real impression and position data for your own sites at no cost, which is more reliable than any third-party estimate.
What is the ideal keyword density?
There is not one. Search engines stopped counting repetitions well over a decade ago, and writing to hit a percentage produces stilted copy that readers abandon. The density checker is for spotting what a page actually emphasises — which is often not what you intended — rather than for reaching a target.
How many redirect hops are acceptable?
One. Every hop adds latency and a small loss of authority, and crawlers give up after a handful. Chains usually accumulate quietly: HTTP to HTTPS, then non-www to www, then an old URL to a new one. Each was reasonable in isolation; together they are three round trips before the page begins loading.
Should I block AI crawlers in robots.txt?
It depends on what you want. Blocking GPTBot and similar means your content is less likely to be used in training or cited in AI answers. Some publishers consider that a defence of their work, others consider it lost visibility as more people search through AI tools. The Robots.txt Tester lets you check any crawler by name so you can see exactly what your current rules permit.
Does my meta description affect rankings?
Not directly, and Google rewrites it most of the time anyway. It affects click-through rate when it does show, which is usually on brand and exact-topic searches — often your highest-intent traffic. Worth writing well, not worth agonising over.