Why is my site missing the llms.txt file and how does it affect SEO?

Your site returns a 404 error when AI systems look for llms.txt. This file helps AI crawlers understand your content better. Without it, your site misses opportunities for AI-powered search features and may get less visibility in AI-generated responses.

How do missing date signals hurt my website's search rankings?

Your pages lack publication dates, last modified dates, or other time markers. Search engines can't determine content freshness, which affects rankings for time-sensitive queries. Fresh content typically ranks better, so missing dates puts your site at a disadvantage.

What does missing opening content mean for my search visibility?

Your pages don't have clear introductory content that directly answers user questions. Search engines look for immediate, relevant answers to display in featured snippets. Without opening content, your site misses chances to appear in these prominent search positions.

Why should I add alt text to all my images?

None of your 27 images have alt text descriptions. Screen readers can't describe images to visually impaired users, hurting accessibility. Search engines also can't understand image content, reducing your chances of appearing in image search results.

How does content freshness impact my site's authority and trustworthiness?

Your content lacks date indicators that show when information was created or updated. Users and search engines question outdated content's reliability. Adding clear timestamps helps establish your site's credibility and shows you maintain current, accurate information.

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Cubic SEO & AI Visibility Audit

Cubic is an AI code review tool designed for complex codebases that automates the review process. Development teams use it to identify bugs, security issues, and code quality problems with machine learning analysis that reduces manual review time and maintains code standards across large projects.

cubic.dev

SEO + AEO + E-E-A-T combined

56%

Audited March 04, 2026 · 25 pages analyzed

Overall Scores

Area	Score	Grade
SEO	78%	B
AEO (AI Visibility)	33%	D
E-E-A-T	59%	F
Combined	56%	—

Fastest way to fix your site is to use our Custom Connector for Claude Desktop, or other IDEs.

E-E-A-T Breakdown

Signal	Score	Issue
Trustworthiness	59%	No about/team page links detected, No privacy policy link detected, 3 security headers missing
Expertise	100%	All checks passing
Authoritativeness	43%	No Organization JSON-LD schema found, No third-party review signals detected
Experience	26%	Found, Freshness issues, Hierarchy issues, Found

Stobo finds what's broken and generates the fixes

Claude Desktop MCP integration settings showing how to add a custom MCP server

Try these in Claude Desktop

stobo my site: cubic.dev

stobo this article: cubic.dev/blog/my-article

Generate a robots.txt for cubic.dev

stobo my blog: cubic.dev/blog

Recommendations

No opening content found AEO
Add a direct answer in the first 40-60 words of the page. AI engines pull from the opening paragraph.
```
stobo this site: cubic.dev
```
llms.txt not found (HTTP 404) AEO
Create an llms.txt file so AI models can understand what cubic.dev does. Stobo generates one automatically.
```
Generate an llms.txt for cubic.dev
```
Freshness issues: no date signals found AEO
Add date markup (datePublished, dateModified) so AI engines know content is current. Stobo generates the JSON-LD.
```
Generate freshness code for cubic.dev
```

Track your score over time

We'll re-audit your site in 7 days and email you what changed. Free, automatic.

Embed your audit badge

Show your score on your README or website.

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Frequently asked questions

Why is my site missing the llms.txt file and how does it affect SEO?: Your site returns a 404 error when AI systems look for llms.txt. This file helps AI crawlers understand your content better. Without it, your site misses opportunities for AI-powered search features and may get less visibility in AI-generated responses.
How do missing date signals hurt my website's search rankings?: Your pages lack publication dates, last modified dates, or other time markers. Search engines can't determine content freshness, which affects rankings for time-sensitive queries. Fresh content typically ranks better, so missing dates puts your site at a disadvantage.
What does missing opening content mean for my search visibility?: Your pages don't have clear introductory content that directly answers user questions. Search engines look for immediate, relevant answers to display in featured snippets. Without opening content, your site misses chances to appear in these prominent search positions.
Why should I add alt text to all my images?: None of your 27 images have alt text descriptions. Screen readers can't describe images to visually impaired users, hurting accessibility. Search engines also can't understand image content, reducing your chances of appearing in image search results.
How does content freshness impact my site's authority and trustworthiness?: Your content lacks date indicators that show when information was created or updated. Users and search engines question outdated content's reliability. Adding clear timestamps helps establish your site's credibility and shows you maintain current, accurate information.

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