- Response Codes
- Internal No Response
- Internal Client Error (4XX)
- Internal Server Error (5XX)
- Internal Redirect Loop
- Internal Blocked by Robots.txt
- Internal Blocked Resource
- Internal Redirect Chain
- External Blocked Resource
- Internal Redirection (3XX)
- Internal Redirection (Meta Refresh)
- Internal Redirection (JavaScript)
- External No Response
- External Client Error (4XX)
- External Server Error (5XX)
- Security
- HTTP URLs
- Mixed Content
- Form URL Insecure
- Form On HTTP URL
- Missing HSTS Header
- Unsafe Cross Origin Links
- Protocol-Relative Resource Links
- Missing Content-Security-Policy Header
- Missing X-Content-Type-Options Header
- Missing X-Frames-Options Header
- Missing Secure Referrer-Policy Header
- Bad Content Type
- Hreflang
- Non-200 Hreflang URLs
- Missing Return Links
- Inconsistent Language & Region Confirmation Links
- Non-Canonical Return Links
- Noindex Returns Links
- Incorrect Language & Region Codes
- Multiple Entries
- Not Using Canonical
- Outside <head>
- Unlinked Hreflang URLs
- Missing Self Reference
- Missing X-Default
- JavaScript
- Noindex Only in Original HTML
- Nofollow Only in Original HTML
- Canonical Mismatch
- Uses Old AJAX Crawling Scheme URLs
- Uses Old AJAX Crawling Scheme Meta Fragment Tag
- Pages with Blocked Resources
- Contains JavaScript Links
- Contains JavaScript Content
- Page Title Only in Rendered HTML
- Page Title Updated by JavaScript
- Meta Description Only in Rendered HTML
- Meta Description Updated by JavaScript
- H1 Only in Rendered HTML
- H1 Updated by JavaScript
- Canonical Only in Rendered HTML
- Pages With JavaScript Errors
- Links
- Outlinks To Localhost
- Pages Without Internal Outlinks
- Non-Indexable Page Inlinks Only
- Internal Nofollow Outlinks
- Pages With High External Outlinks
- Pages With High Internal Outlinks
- Follow & Nofollow Internal Inlinks To Page
- Internal Nofollow Inlinks Only
- Pages With High Crawl Depth
- Internal Outlinks With No Anchor Text
- Non-Descriptive Anchor Text In Internal Outlinks
- AMP
- Non-200 Response
- Missing Non-AMP Return Link
- Missing Canonical to Non-AMP
- Non-Indexable Canonical
- Missing <html amp> Tag
- Missing/Invalid Doctype HTML Tag
- Missing Head Tag
- Missing Body Tag
- Missing Canonical
- Missing/Invalid Meta Charset Tag
- Missing/Invalid Meta Viewport Tag
- Missing/Invalid AMP Script
- Missing/Invalid AMP Boilerplate
- Contains Disallowed HTML
- Other Validation Errors
- Indexable
- Structured Data
- Validation Errors
- Missing
- Validation Warnings
- PageSpeed
- Eliminate Render-Blocking Resources
- Properly Size Images
- Defer Offscreen Images
- Minify CSS
- Minify JavaScript
- Reduce Unused CSS
- Reduce Unused JavaScript
- Efficiently Encode Images
- Serve Images in Next-Gen Formats
- Enable Text Compression
- Preconnect to Required Origin
- Reduce Server Response Times (TTFB)
- Preload Key Requests
- Reduce JavaScript Execution Time
- Serve Static Assets With An Efficient Cache Policy
- Minimize Main-Thread Work
- Image Elements Do Not Have Explicit Width & Height
- Avoid Large Layout Shifts
- Avoid Serving Legacy JavaScript to Modern Browsers
- Avoid Multiple Page Redirects
- Use Video Format for Animated Images
- Avoid Excessive DOM Size
- Ensure Text Remains Visible During Webfont Load
Pages Without Internal Outlinks
Pages that do not contain links to other internal pages.
This can mean there are no links to other pages. However, it is also often due to the use of JavaScript, where links are not present in the raw HTML and are only in the rendered HTML after JavaScript has been processed.
If there are no links that use an <a> tag with an href attribute to other internal pages, the search engines and the SEO Spider will have trouble discovering and indexing them.
How to Analyse in the SEO Spider
View URLs with this issue in the ‘Links’ tab and ‘Pages Without Internal Outlinks’ filter and export all URLs using the ‘Export’ button.
Enable JavaScript rendering mode (‘Config > Spider > Rendering’) to crawl pages with links that are only client-side in the rendered HTML.
What Triggers This Issue
This issue is triggered when pages lack links to other internal pages.
For example if a page on the following website:
https://www.screamingfrog.co.uk/
Did not have an internal link like:
<a href="https://www.screamingfrog.co.uk/seo-spider/">SEO Spider</a>
How To Fix
Review the pages and whether there are links in the raw or rendered HTML.
Switch to JavaScript rendering mode if links are only in the rendered HTML. While Google is able to render pages and see client-side only links, consider including important links server side in the raw HTML.
For pages that simply don’t link to any other internal pages, consider linking to other pages to help users continue in their journey and pass PageRank onwards.
Further Reading
- How To Crawl JavaScript Websites - From Screaming Frog
- Link best practices for Google - From Google