SuperSEOPlus

Free SEO tools

Find the SEO problem.
Check it in minutes.

No sign-up. Every tool says what it checked and what it could not, so you know how far to trust the result.

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How to use the tools

Each tool takes a minute. Here is when to use it, the steps, and what to keep in mind.

  • Robots.txt Generator

    Use it when: You want to control which parts of your site crawlers may fetch, or check a robots.txt before you publish it.

    1. Start from a preset (WordPress or AI-crawler presets exist) and adjust the rules for each user agent.
    2. Add your sitemap address. It must be a full https address.
    3. Test a URL against the rules to see whether it would be allowed.
    4. Copy or download the file and upload it to the root of your site.

    Runs in your browser; nothing is uploaded. robots.txt controls crawling, not indexing, and it is a request, not a lock.

  • WWW Redirect Checker

    Use it when: You want to know whether your site answers on one address only, or on several (http, https, with or without www).

    1. Enter a public domain such as example.com. Paths are ignored; the home page is tested.
    2. Wait up to 20 seconds while the four variants are requested.
    3. Read each variant's chain of redirects and the canonical check.
    4. Follow the “What to fix” list.

    Public domains on ports 80 and 443 only. Each check sends the domain to our server, which requests the page; nothing is stored.

  • Keyword Density Checker

    Use it when: You want to see which words and phrases a draft uses most, for example to spot repetitive wording.

    1. Paste a page, article or draft.
    2. Choose phrase length (1, 2 or 3 words), whether to ignore common words and numbers, and the minimum count.
    3. Read the table; sort any column.
    4. Export the results as CSV if you need them.

    Nothing leaves your browser. There is no ideal percentage and the tool does not score your text. Input is capped at 300,000 characters.

  • Meta Tag and Open Graph Checker

    Use it when: You want to see the title, description, canonical, robots and social-preview tags a page actually serves.

    1. Enter the full address of one public page.
    2. Wait up to 20 seconds while the page is fetched.
    3. Read what was observed, then the “things to look at”.
    4. Use the approximate link preview as a guide only.

    One page per check; the first 256 KiB of HTML is read and JavaScript is not run. Counts are not a score. The address is sent to our server to fetch the page and is not stored.

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