Skip to content

Guides
API reference
Audit rules
Changelog

Search the docs

Menu

Search the docs

Getting started

Kritano API
Authentication

Using the API

Rate limits
Errors
Scans

MCP

MCP server

Your key, plan and limits
This reference, as OpenAPI 3.1

List your sites

List your audits, newest first
Start an audit
An audit's progress and scores
Delete a finished audit and its results
Stop a queued or running audit

An audit's findings, worst first
Dismiss or acknowledge a finding

Download a completed audit

Scan one page
A scan's status and result

Accessibility
SEO
Security
Performance
Content
Content: E-E-A-T
Content: answer engines
Structured data

Getting started

Kritano API
Authentication

Using the API

Rate limits
Errors
Scans

MCP

MCP server

Your key, plan and limits
This reference, as OpenAPI 3.1

List your sites

List your audits, newest first
Start an audit
An audit's progress and scores
Delete a finished audit and its results
Stop a queued or running audit

An audit's findings, worst first
Dismiss or acknowledge a finding

Download a completed audit

Scan one page
A scan's status and result

Accessibility
SEO
Security
Performance
Content
Content: E-E-A-T
Content: answer engines
Structured data

Audit rules Security

SSL Certificate Expired

Criticalssl-cert-expired

What it checks

The site's TLS certificate has expired, so browsers refuse the connection

Check your site for this

Kritano runs this rule, and every other one here, on each page of your site.

Audit your site free

© 2026 Kritano. Website audits for SEO, accessibility, security, performance and content.

kritano.com
The app
OpenAPI document
Changelog feed