---
metadata:
  - name: generator
    content: Diplodoc Platform v5.63.2
alternate:
  - https://mobi.yandex.com/support/webmaster/en/indexing-options/tools.md
  - https://mobi.yandex.com/support/webmaster/tr/indexing-options/tools.md
  - href: https://mobi.yandex.com/support/webmaster/en/indexing-options/tools.md
    type: text/markdown
    title: Markdown version
  - href: https://mobi.yandex.com/support/webmaster/en/llms.txt?revision=e69a3f9ddda6afcea74690a39ee28e063e619fa3
    rel: describedby
---
> **Documentation Index:** Fetch the complete configuration index at https://mobi.yandex.com/support/webmaster/en/llms.txt?revision=e69a3f9ddda6afcea74690a39ee28e063e619fa3


# Tools overview

**Robots.txt analysis**

 
:   Helps you check if the `robots.txt` file on your site is composed correctly, find out if a specific URL is allowed for indexing, as well as view the history of file changes. [Learn more](https://mobi.yandex.com/support/webmaster/en/indexing-options/robots-txt-analyzer.md)

**Sitemap validator**

 
:   Helps you check if the `Sitemap` file on your site is formed correctly. Once you check it, you can upload the file to Yandex Webmaster so that the indexing bot crawls its contents sooner. [Learn more](https://mobi.yandex.com/support/webmaster/en/indexing-options/tool-sitemap.md)

**Checking the server's response**

 
:   Helps you check if the site pages are available for the main Yandex robots. [Learn more](https://mobi.yandex.com/support/webmaster/en/indexing-options/server-response.md)

**Removing pages from search results**

 
:   Allows you to speed up the removal of a specific site page, directory, or the entire site from search results. [Learn more](https://mobi.yandex.com/support/webmaster/en/yandex-indexing/removing-from-index.md)

**Audit pages for mobile compatibility**

 
:   Helps you determine how well your site pages are optimized for mobile devices. [Learn more](https://mobi.yandex.com/support/webmaster/en/recommendations/mobile-site.md)


**XML validator**

 
:   Helps you check the XSD schemas of your site's document (syntax, structure, content model, and data types) generated for participation in Yandex [Affiliate programs](https://mobi.yandex.com/support/webmaster/en/site-content/data-transmit.md). [Learn more](https://mobi.yandex.com/support/webmaster/en/indexing-options/xml-validator.md)



**Structured data validator**

 
:   Helps you validate the structured data on your site. Supported markup types: [microformats](https://mobi.yandex.com/support/webmaster/en/microformats/what-is-microformat.md), [Schema.org](https://mobi.yandex.com/support/webmaster/en/schema-org/intro-schema-org.md), [Open Graph](http://ogp.me/), [HTML microdata](http://www.w3.org/TR/microdata/), and [RDFa](http://www.w3.org/TR/rdfa-core/). [Learn more](https://mobi.yandex.com/support/webmaster/en/yandex-indexing/validator.md)




**IP address check**

 
:   Helps you check if an IP address belongs to Yandex indexing bots. [Learn more](https://mobi.yandex.com/support/webmaster/en/indexing-options/ip-check.md)


**Certificate check**

 
:   Helps you check information about SSL/TLS certificates issued for the site, including those from the National Certification Authority. [Learn more](https://mobi.yandex.com/support/webmaster/en/service/certification.md)


<div class="cut-button">

{% cut "Contact support" %}




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Tell us what your question is about so we can direct you to the right specialist:
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{% list tabs radio %}

- Structured data validator


  {% list tabs radio %}

  - Field not defined in Schema.org


    If you're sure that this field is included in [Schema.org](http://schema.org/docs/full.html), write to us in the feedback form.
  


    <div style="padding: 15px;
          margin: 10px 0;
          background: #FFFFFF;
          border-radius: 10px;
          border: 1px solid var(--yc-color-line-generic);">
          <iframe style="background: #FFFFFF;"
                height="700"
                width="100%"
                frameborder="0"
                src="https://forms.yandex.com/surveys/5252/?&theme1=Validator microrazmetki&theme2=Pole ne   opredeleno v specifikacii Schema&iframe=1&lang=en">
          </iframe>
    </div>

  - Errors in the markup


    You can use the structured data validator to check an HTML fragment of a page. Try editing the code directly in the validator and re-checking it after each change to find a mistake in the markup.
  
  
    For a detailed description of errors, see [Structured data validator](https://mobi.yandex.com/support/webmaster/en/yandex-indexing/validator.md).
  
  


    {% cut "Error could not be fixed" %}
  
    <div style="padding: 15px;
          margin: 10px 0;
          background: #FFFFFF;
          border-radius: 10px;
          border: 1px solid var(--yc-color-line-generic);">
          <iframe style="background: #FFFFFF;"
                height="700"
                width="100%"
                frameborder="0"
                src="https://forms.yandex.com/surveys/5252/?&theme1=Validator microrazmetki&theme2=Oshibki v   razmetke&iframe=1&lang=en">
          </iframe>
    </div>

    {% endcut %}

  - Technical error in the structured data validator



    <div style="padding: 15px;
          margin: 10px 0;
          background: #FFFFFF;
          border-radius: 10px;
          border: 1px solid var(--yc-color-line-generic);">
          <iframe style="background: #FFFFFF;"
                height="700"
                width="100%"
                frameborder="0"
                src="https://forms.yandex.com/surveys/5252/?&theme1=Validator microrazmetki&theme2=Tehnicheskay   oshibka v rabote validatora&iframe=1&lang=en">
          </iframe>
    </div>

  {% endlist %}


- Report an error in the tool

  Specify the tool in which you found the error, describe the situation in as much detail as possible, and if necessary, attach a screenshot that illustrates it.




  <div style="padding: 15px;
        margin: 10px 0;
        background: #FFFFFF;
        border-radius: 10px;
        border: 1px solid var(--yc-color-line-generic);">
  <iframe style="background: #FFFFFF;"
        height="700"
        width="100%"
        frameborder="0"
        src="https://forms.yandex.com/surveys/3522/?&theme1=Oshibka v rabote instrumenta&iframe=1&lang=en">
  </iframe>
  </div>



{% endlist %}


{% endcut %}



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