HighPerformance
Largest contentful paint is too slow
Homepage · Lighthouse evidence captured
Site audit
Find the SEO issues worth fixing. Hand your agent the brief.
Audit up to 20 public pages for crawlability, indexing, metadata, links, images, structured data, security, accessibility and mobile performance. See the affected URLs, why each issue matters and a fix brief your coding agent can verify.
Real worked example
GLP-3 Wiki
glp3.wiki · 20-page public sample
- Pages checked
- 20
- High impact
- 1
- Checks passed
- 80/102
- Checks failed
- 13
87 pages found
Critical and high
9 not applicable
Grouped by rule
What to fix first
Performance is the main issue.
- 1
Improve homepage LCP and remove render-blocking work.
- 2
Add the missing JSON-LD fields on the calculator.
Page experience
Mobile PageSpeed test · lab data
Performance
Accessibility
Best practices
SEO
Failed checks
Open an issue to see affected pages and evidence.
Copy for agent
This is a dated audit of public pages, not private analytics. Lighthouse is a mobile lab test; results change when the site changes.
What’s in the report
See what is wrong, where it appears and what to do next.
The problems holding pages back
See crawl and indexability failures, broken links, missing or duplicated metadata, heading problems, image gaps, structured-data errors, security warnings and accessibility issues in one report.
The exact pages affected
Each problem keeps the affected URLs and measurements together. A shared template mistake appears as one issue with every page it touches, not dozens of disconnected rows.
Mobile performance you can investigate
Get mobile Lighthouse scores plus LCP, FCP, TBT and CLS. Use the lab measurements to diagnose slow pages, then compare the result after your fix.
Put it to work
Go from audit finding to a verified fix.
Fix the biggest problems first
Start with the critical and high-impact problems most likely to block crawling, weaken important pages or slow down mobile visitors. Leave the low-value tidy-up until later.
Give your agent the full context
Copy one issue or the full priority list with the affected URLs, measurements and acceptance checks already included. Your coding agent gets the context it needs without another hand-written brief.
Check the fix actually worked
Run the audit again after you ship. Confirm the affected pages now pass, catch any regressions and move to the next problem with evidence instead of guesswork.
A repeatable workflow
Audit, fix and confirm the result.
- 1
Audit the site
Enter any public domain. Metricsjar samples up to 20 pages, checks up to 100 internal links and runs mobile Lighthouse.
- 2
Ship the fix
Start with the highest-impact problem, open the affected URLs and copy a complete fix brief to your coding agent.
- 3
Confirm the result
Re-run the audit after deployment. Confirm the issue cleared, catch regressions and move to the next priority.
Metricsjar vs Ahrefs or Semrush
Use Ahrefs or Semrush for exhaustive crawling. Use Metricsjar to find and fix what matters.
Choose Ahrefs or Semrush when you need exhaustive crawls, scheduled monitoring and a specialist workspace for an SEO team. Metricsjar is for technical founders and app owners who need to find the biggest problems, hand exact fixes to a coding agent and confirm the work after it ships.
Metricsjar
- 102 technical and on-page checks across a 20-page sample
- Exact affected URLs and measurements, grouped by problem
- Mobile Lighthouse with the metrics to investigate
- Agent-ready fix briefs with acceptance checks
Ahrefs or Semrush
- Large configurable crawls for complex sites
- Scheduled audits, historical trends and exports
- Team workflows across many sites
- Best when technical SEO is a regular specialist job
Your first complete Metricsjar project is free. The audit samples 20 public pages to surface common template and site-wide problems quickly; it is not an exhaustive enterprise crawl.
Before you run it
What to know before your first audit.
Does it crawl my whole site?
The current audit samples up to 20 public pages and checks up to 100 internal links. It is designed to find meaningful template and site-wide issues quickly, not to replace a full enterprise crawl.
What does the report check?
It covers crawlability, indexability, titles, descriptions, headings, canonicals, links, images, structured data, security and accessibility. It also runs mobile Lighthouse for performance, accessibility, best practices and SEO.
Can I audit a site I do not own?
Yes. The audit reads public pages, so you can check your own site, a competitor or a site you are considering acquiring. It cannot inspect signed-in or private pages.
How is this different from Ahrefs or Semrush?
Ahrefs and Semrush are stronger when you need large configurable crawls, scheduled monitoring, history and team reporting across many sites. Metricsjar gives a technical founder a focused priority list, exact evidence and fix briefs that can go straight to a coding agent, without adding another recurring SEO subscription.
Do I need to connect my site or analytics?
No. Enter a public URL and the audit reads what any visitor or search crawler can reach. It does not need access to your CMS, Search Console or analytics, and it cannot inspect signed-in or private pages.
Run the audit before your next release.
Find broken links, crawl and indexing problems, missing metadata, structured-data gaps and slow mobile pages. Copy the fixes to your coding agent, ship them, then re-run the audit to confirm they cleared.