Run a comprehensive technical SEO audit covering crawlability, indexability, rendering, site architecture, structured data, page experience, security, and internationalization.
SkillScore87Maintained
Automatic
◆Marketing & Content pack
Last verified 8/20/2026
What it changes
Passed 20 of 23 test cases with the skill, and 15 of 23 without it.
Without skill65%
With skill87%
Checks it passed that the model alone missed
Includes a 6-layer score section evaluating site health layers.
Specifies saving the markdown audit deliverable to seo-technical-audit.md.
Includes a Scope and methodology section at the beginning of the audit report.
and 8 more in the full report
5 fixed15 passed either way3 still failing0 broke
Pass-rate lift
+22 pp
Tokens
+41%
Agent turns
0%
Response time
-16%
Model gemini-3.6-flashMeasured 8/20/2026v220 of 23 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 5
Prompt
We provided HTML source files and robots.txt for a site health audit. What is the default output markdown file path where the technical SEO audit deliverable should be saved?
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies saving the markdown audit deliverable to seo-technical-audit.md.
Missed
Passed
case-22 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md152 lines3 files
Technical SEO
Audit and fix the layer beneath the content: how search engines crawl, render, index, and trust a site. Stack-agnostic.
When to use
Site-wide audit before or after a migration
Investigating indexing or ranking drops
Setting up SEO foundations on a new site
Auditing Core Web Vitals or page experience signals
Fixing crawl waste, redirect chains, or canonical issues
Setting up multilingual or multi-regional sites
When NOT to use
Single-page on-page optimization (use seo-onpage)
Keyword strategy or content planning (use seo-keyword)
Competitor backlink or SERP analysis (use seo-competitor)
Pure performance optimization without SEO context (use performance-optimization)
Required inputs
The site URL or staging URL
Access to (at minimum) view the rendered HTML, robots.txt, and sitemap
Ideally: search console access, server logs, and a crawler
If the site is large (10K+ URLs), confirm whether the audit is a full crawl or a sample.
The framework: 6 layers
Technical SEO has six layers, stacked. A failure in a lower layer breaks everything above it.
Communicate effectively with stakeholders across functions and seniority levels. Use this skill when writing status updates, preparing executive reviews, sharing technical decisions with non-technical audiences, managing up, communicating bad news, or designing the communication cadence for a project. Triggers on stakeholder update, status report, executive summary, exec review, manage up, communicate bad news, project comms, status meeting, weekly update. Also triggers when a project is going o