https://supabase.com

Page title length is not optimal

Your page title is either too short to be descriptive, or too long and gets cut off in Google search results with "...". Both reduce click-through rates.

Images are missing dimensions

Images without dimensions can cause layout shifts while the page loads. That hurts Core Web Vitals and makes the page feel unstable.

No analytics tracking detected

You can't improve what you don't measure. Without analytics you have no visibility into traffic, user behavior, or conversion goals.

X-Frame-Options header missing

Your site can be embedded in an invisible iframe on another website. Attackers use this technique (called "clickjacking") to trick your users into clicking things without realising it.

X-Content-Type-Options header missing

Browsers can "sniff" your files and treat them as a different file type than intended. This can allow attackers to upload files that get executed as scripts. This header prevents that.

Referrer-Policy header missing

When visitors click a link to leave your site, their browser sends your full URL (including any private query parameters) to the destination site. A referrer policy controls what gets shared.

Content Security Policy missing

There's no policy controlling what scripts and resources your page can load. Without this, an attacker who injects any code into your page can do anything — steal cookies, redirect users, exfiltrate data.

Missing Permissions-Policy header

Without a Permissions-Policy header, any script on your page can access the camera, microphone, geolocation, and other sensitive browser features. This is a defence-in-depth security header that limits exposure if you get XSS.

No CAA DNS record

Without a CAA record, any certificate authority in the world can issue an SSL certificate for your domain. A CAA record restricts which CAs are allowed.

Heading hierarchy is broken

The page outline skips heading levels. That makes machine parsing and assistive reading less reliable.

llms.txt has no product description

Your llms.txt exists but doesn't explain what your product is. AI systems use the description to understand your site context.

llms.txt references broken links

Your llms.txt lists pages that don't load. AI systems following these links will hit dead ends.

No sitemap.xml found

A sitemap helps crawlers discover the pages you want cited and indexed.

No content date signal found

Perplexity and Google AI Overview weight fresh content significantly higher. Without a date signal, your page may be treated as potentially outdated — reducing how often AI systems cite it in answers.

No question-format headings found

ChatGPT, Claude, and Perplexity extract headings as Q&A pairs and include them in answers with a link to your page. Pages with question-format headings are cited more often in AI responses.

First paragraph too short for AI citation

AI systems like ChatGPT, Claude, and Perplexity extract the beginning of your page as citation passages. A short or absent opening paragraph means they have little useful content to cite, reducing how often your page appears in AI answers.

No skip navigation link

Keyboard and screen reader users have to tab through every navigation item on every page to reach the main content. A "skip to content" link at the top of the page lets them jump directly to the main area.