Semantic Core
Free tool · 04

Check your site — what’s wrong from a search perspective

Enter a site or page URL. In 30–90 seconds you get a breakdown: speed, titles, whether pages are visible to search engines, how the link looks when shared in a messenger. AI names the 3 main problems and a fix plan.

Проверка занимает 30–90 секунд. Не закрывай вкладку. С одного устройства — 10 проверок в сутки.

How to use

  1. 1Copy the site or page URL from the browser address bar. With or without https:// — we’ll complete it.
  2. 2Hit «Run». Half a minute to a minute and a half — don’t close the tab. We fetch the page, measure its speed via Google PageSpeed and ask AI to analyze the content.
  3. 3Read the AI summary at the top — the 3 main problems. Below it — details by section and, at the end, a «what to fix» list.
  4. 4Hand the «what to fix» list to a developer or do it yourself. Run the check again to confirm the problem is gone.

Limits. Up to 10 checks per day per device. Sign in for higher limits: 10 / 50 / 150 / 500 depending on your plan. Each check can take up to 90 seconds.

What exactly it checks

  • ·Load speed on phone and desktop (via Google PageSpeed)
  • ·Page title and description (what shows up in search)
  • ·The main heading — whether it exists and isn’t duplicated
  • ·Images without alt text (important for search and low-vision users)
  • ·Internal and outbound links — how many and where
  • ·Secure connection (HTTPS)
  • ·Whether the search engine sees the whole site (robots.txt and sitemap.xml)
  • ·How the link looks when shared in Telegram, WhatsApp, VK

Want to check the whole site automatically?

On paid Semantic Core plans: every page is checked on its own — on any change. You see when speed drops. A ready task for the developer for each problem.

See pricing

FAQ

What does the SEO audit check?
Speed on phone and desktop, title and description, the main heading, images without alt text, HTTPS, visibility to search engines (robots.txt and sitemap), and the link preview in messengers.
Do I need a developer to fix everything?
Some fixes are technical, but the list is concrete — you’ll do much of it yourself and hand the rest over as one clear task.
How much does a check cost?
Free, up to 10 checks per day per device.

Read more: How Google and Yandex decide what to show on top