---
metadata:
  - name: generator
    content: Diplodoc Platform v5.54.2
alternate:
  - https://yandex.ru/support/webmaster/en/service/certification.md
  - https://yandex.ru/support/webmaster/ru/service/certification.md
  - href: en/service/certification.md
    type: text/markdown
    title: Markdown version
  - href: ../llms.txt
    type: text/markdown
    title: llms.txt
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.ru/support/webmaster/en/llms.txt


# How to check for SSL/TLS site certificates

SSL/TLS certificates are used for securely processing user data and are necessary for sites that use HTTPS.

## Checking for a certificate issued by the National Certification Center

You can obtain a certificate from the National Certification Center on the [Gosuslugi](https://www.gosuslugi.ru) portal if the security certificate from the international center was revoked. When issuing a document, the recipient’s connection with the site will be checked, and the resource name will be published in the [https://www.gosuslugi.ru/tls](https://www.gosuslugi.ru/tls) public log.

In Yandex Webmaster, you can find out whether your site has a certificate issued by the National Certification Center:

1. Go to Yandex Webmaster.
1. In the upper-right corner, go to **Tools** → **Checking the NCC certificate**.
1. In the search bar, specify the site domain, for example, `example.com`.

If you haven't requested a certificate, but information about it is in Yandex Webmaster, contact support using the form below. Our specialists will help you figure out the situation.


<div class="cut-button">

{% cut "Contact support" %}



<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.ru/surveys/12410457.17dfed513b6965a1804961de00032e9b684d11a1/?&iframe=1&lang=en">
  </iframe>
</div>



{% endcut %}

</div>


<!-- source: en/_includes/cut-button-style.md -->

<!-- endsource: en/_includes/cut-button-style.md -->

<!-- source: en/_includes/footer.md -->
<div width="100%" align="center" class="main-footer"> 
<br><br><br>
You can also go to 
<br><br>


[![](../_assets/logo/logo-pic.svg)](https://webmaster.yandex.ru/) [![](../_assets/logo/logo-ru.svg)](https://webmaster.yandex.ru/)





</div>


<!-- source: en/_includes/styles/footer-style.md -->

<!-- endsource: en/_includes/styles/footer-style.md -->
<!-- endsource: en/_includes/footer.md -->