# SEO score

> How each page's score is calculated and what each check looks at.

Source page: https://docs.jazui.com/panel/seo/en

Each cached page has two scores from 0 to 100: **What bots get** (the HTML Jazui serves, with your rules applied) and **Original site** (the page as the browser paints it, before rules). The difference tells you how much Jazui improves your page. It's audited on every render; checks that need the network run in the background and site-wide checks run hourly.

The score window has **Fix first** (each problem with the points gained by fixing it), one tab per category, the Google and sharing **Preview**, and the change **History**.

## Calculation

Each check comes out **Good** (full weight), **Warning** (half) or **Error** (nothing). Each category scores from 0 to 100 and the total is the weighted average:

| Category | Weight |
|---|---|
| Metadata | 25 |
| Content | 20 |
| Social | 15 |
| Structured data, Links, Images and Technical | 10 each |

## Checks

| Category | Check (weight) | What it requires |
|---|---|---|
| Metadata | Page title (3) | Exists, is unique and has 30–60 characters. |
| Meta description (3) | 70–160 characters. |  |
| Canonical URL (2) | Only one, absolute and pointing to the page itself. |  |
| Language (1) and Viewport (1) | `lang` on `<html>`; viewport with `width=device-width`. |  |
| Meta robots (3) | `noindex` is an error; `nofollow`, a warning. |  |
| Unique title and description on the site (2 + 2) | Not repeated on other pages. |  |
| Canonical target (2) | Answers 200, no chains or loops. |  |
| Content | Painted content (3) | At least 50 characters after rendering. |
| H1 heading (3) | Exactly one, with text. |  |
| Heading order (1) | No skipped levels. |  |
| Amount of text (2) | 300 words or more. |  |
| Text ratio (1) | At least 10% of the HTML. |  |
| Social | og:title (2) and og:description (2) | Present. |
| og:image (3) | Absolute and, if it declares dimensions, at least 1200×630. |  |
| og:url (1) | Present. |  |
| X card (1) | `twitter:card`. |  |
| Share image (2) | Downloads, isn't SVG and is at least 1200×630. |  |
| Structured data | Structured data (2) | JSON-LD is present. |
| Valid JSON-LD (3) | It can be parsed. |  |
| Structured data types (3) | Recognized types with their required fields. |  |
| Links | Internal links (3) | The page links to others on the site. |
| Link text (2) | No «click here» or empty links. |  |
| Internal nofollow (1) | No `nofollow` on internal links. |  |
| Broken links (2) | Cached internal links aren't broken or redirecting. |  |
| Linked page (2) | Another page links to it (not an orphan). |  |
| Images | Alt text (3) | More than half without `alt` is an error. |
| Image dimensions (2) | `width` and `height`. |  |
| Format (1) | WebP, AVIF or SVG. |  |
| Technical | HTTP status (3) | 200. |
| Render time (1) | Up to 3 s good; up to 8 s warning. |  |
| HTML size (1) | Over 1 MB warning; over 5 MB error. |  |
| hreflang (1) and reciprocal hreflang (1) | Correct language alternates that link to each other. |  |
| robots.txt (3) and Sitemap (1) | robots.txt allows the page and a sitemap exists. |  |

## Raising the score without touching your code

- Missing title, description, Open Graph or structured data: an **Inject into <head>** rule, or ask [your AI to suggest them](https://docs.jazui.com/llms/en/ai-suggestions.txt) and apply them as a rule in one click.
- The page is slow or saved incomplete: raise the **maximum time** or use a **page-ready selector**.
- Banners or chats cluttering the content: a **Remove elements** rule.
- Anything that depends on your HTML (H1, alt text, internal links) is best fixed on your website.