All the SEO errors we can detect on your site

The page content is hard to read

Lorem Ipsum Content

The page contains Lorem Ipsum text

Short Content

The page has insufficient content

Long H1 Heading

The H1 heading exceeds the recommended length of 70 characters

Long H2 Headings

The page has H2 headings longer than 70 characters

Missing H1 Heading

The page has no H1 heading tag

Missing H2 Headings

The page has no H2 heading tags

Multiple H1 Headings

The page has multiple H1 heading tags

Non-Sequential Headings Structure

The page has an invalid heading hierarchy

Heavy Images

Image file size exceeds 200KB

Images with Long Alt Text

Some images have alt text longer than 125 characters

Images Missing Alt Text

Some images on the page are missing alt text

Meta Description Too Long

The meta description exceeds the recommended length

Missing Meta Description

The page has no meta description tag

Meta Description Too Short

The meta description is shorter than the recommended length

Pagination With Noindex

A paginated page is set to noindex while its first (non-paginated) page is indexable

Title Too Long

The page title exceeds the recommended length

Missing Title Tag

The page has no title tag

Title Too Short

The page title is shorter than the recommended length

Title Matches H1

The page title is identical to the H1 heading

Technical

Technical issues affecting performance or accessibility.

Different Canonical URL

The page specifies a different canonical URL

Missing Canonical Tag

The page has no canonical URL specified

Multiple Canonical URLs

The page has multiple different canonical URLs specified

Missing Robot Directives

The page has no robot directives specified

Page Not Followable

The page is configured to prevent search engines from following its links

Page Not Indexable

The page is configured to not be indexed by search engines

Client Error (4XX)

The page returned a client error status code (4XX)

Redirection

The page is redirecting to another URL

Server Error

The page returned a server error status code (5xx)

Images Missing Dimensions

Some images on the page are missing width or height attributes

URL Too Long

URL exceeds recommended length

Non-ASCII Characters in URL

URL contains non-ASCII characters

Underscores in URL

URL contains underscores instead of hyphens

Missing structured data

The page lacks schema.org structured data

Missing required fields in structured data

The page is missing required fields in its schema.org structured data.

Missing optional fields in structured data

The page is missing optional fields in its schema.org structured data.

Site requires JavaScript to render

Your site delivers its content mostly through JavaScript, which hurts indexing.

robots.txt file has syntax errors

We detected malformed directives or invalid content in your robots.txt

Sitemap file is empty

Your sitemap file exists but declares zero URLs

Sitemap file has syntax errors

We detected malformed XML or invalid content in your sitemap

Sitemap lists non-indexable URLs

Some URLs in your sitemap are marked as noindex

Server error when fetching sitemap

Your server returned an error when we requested the sitemap

Indexable URLs missing from the sitemap

We crawled indexable URLs that your sitemap does not declare

Double-escaped HTML entities in structured data

The page's structured data contains HTML entities escaped twice.

Agentic

Discoverability issues for AI agents.

Homepage does not offer a Markdown alternate

The homepage does not declare `<link rel="alternate" type="text/markdown">`

AI crawlers blocked by robots.txt

Your robots.txt blocks root access for well-known AI bots (GPTBot, ClaudeBot, PerplexityBot...)

llms.txt does not follow the expected format

Your llms.txt exists but does not start with an H1 title

llms.txt file is missing

Your domain does not serve a reachable llms.txt file

No SDK found on npm/PyPI