The Open Audit Library
1,840+ free technical SEO audits. Ungated. Citation-grade. The largest open library of its kind.
Built by the TrafficBlog research desk since January 2022 — original teardowns of public SaaS, ecommerce, and publisher sites, each one shipped with annotated screenshots, six data tables, and a downloadable CSV. No paywall, no email gate, no listicle rebrand.
Anatomy of an audit
14 screenshots, 6 data tables, one downloadable CSV — every time.
Every audit in the archive ships with the same evidence standard. No prose-only teardowns, no opinion pieces dressed as data. You open the page and the receipts are already on the table.
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14
Annotated screenshots
Each captures a specific finding — a redirect chain, a canonical collision, an internal-link leak — with the URL and crawl date stamped beneath. Hover annotations label the exact element under review.
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6
Data tables
Crawl metrics, indexation status, Core Web Vitals, log-file samples, link-graph slices, and a TBD mapping table that names every issue to a fix priority. All sortable, all sourced.
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1
Downloadable CSV
The raw rows behind the tables. Drop it into Sheets, pivot it however you want, cite the audit. No email capture, no "subscribe to download" wall.
Browse by vertical
Six categories. Every site benchmarked against its peers, not against a generic checklist.
Jump directly to the vertical that matches your site. Each card shows the audit count, the median site scale, and the archetype most-requested by readers.
Vertical 01
SaaS
412 audits
Self-serve product platforms, dev-tools, and PLG apps between 50K and 5M monthly sessions. Sample archetype: mid-market B2B SaaS with a docs-heavy site.
Browse SaaS audits →
Vertical 02
Ecommerce
386 audits
DTC brands, marketplace storefronts, and category-killer retailers. Sample archetype: fashion DTC with a 50K-SKU catalog and faceted nav problems.
Browse Ecommerce audits →
Vertical 03
Publishing
348 audits
Newsrooms, trade publications, and niche media outlets. Sample archetype: 200-article/week news desk with thin-content cannibalization risk.
Browse Publishing audits →
Vertical 04
Fintech
274 audits
Consumer finance apps, neobanks, and B2B payments platforms. Sample archetype: regulated consumer fintech with heavy YMYL scrutiny.
Browse Fintech audits →
Vertical 05
EdTech
228 audits
Online learning platforms, university extension sites, and course marketplaces. Sample archetype: MOOC platform with a sprawling course catalog.
Browse EdTech audits →
Vertical 06
Travel
192 audits
OTAs, hotel chains, and destination-marketing sites. Sample archetype: hotel group with multilingual landing pages and seasonal SERP volatility.
Browse Travel audits →
Don't see your vertical? Nominate a site for the next refresh →
Methodology
How an audit gets built — from panel to CSV.
Every audit in the archive is original research, not aggregation. Here is the production pipeline a single audit moves through before it ships to the public library.
1. Site selection
The research desk triages nominations from readers, internal benchmarks, and the TrafficShare Index's weekly fastest-growing list. Sites are picked for representation — every audit should teach a pattern the reader can lift into their own stack.
2. Data collection
Crawls run on a fresh panel of 4.2M opted-in users across desktop and mobile, refreshed every Tuesday at 09:00 ET. Log-file samples are pulled from consenting site operators or, where unavailable, inferred from crawl-trace deltas.
3. Annotation
Editors map every finding to a specific URL, a screenshot, and a fix priority. The 14-screenshot, 6-table standard is enforced by a checklist — audits that don't meet it don't ship.
4. Historical framing
Each chart sits on a 36-month baseline drawn from the same panel, with the historical archive extending back to January 2022. Readers can see whether a finding is a new regression or a long-running structural issue.
Why SEO teams cite this archive
Coverage, reach, and the backlink profile behind every audit.
3×
Featured in the Semrush State of Content Marketing report — 2023, 2024, and 2025 editions.
78,400
Newsletter subscribers as of Q4 2025. Median open rate 41%, CTR 6.2% (MailerLite public dashboard).
142,000
Referring domains — 88% DR 60+. Verified in Ahrefs, November 2025.
410K / mo.
Average organic sessions to the site. Verified in the public Ahrefs toolbar widget on the site footer.
Editorial coverage cited in The Verge, TechCrunch, Financial Times, and The Wall Street Journal since 2022. Winner of the Search Engine Land Award for Best SEO Publication, 2024.
Practical questions
What readers ask before they rely on the archive.
- What's actually covered in each audit?
- Every audit ships with 14 annotated screenshots, 6 data tables (crawl metrics, indexation, Core Web Vitals, log-file samples, link-graph slice, and a fix-priority TBD map), and one downloadable CSV of the underlying rows. Coverage is consistent across verticals — the specifics of what gets measured change, but the evidence standard does not.
- How often is the archive refreshed?
- New audits publish every Tuesday at 09:00 ET, in lockstep with the clickstream panel refresh. Existing audits are re-crawled on a rolling 90-day cycle; any structural change worth flagging gets a dated addendum at the top of the audit page, not a silent rewrite.
- Can I cite an audit in my own research or report?
- Yes. Cite freely — link to the audit URL and the publication date. The archive exists to be cited, which is why the methodology and panel are documented on every page. If you need a static snapshot for an offline report, the downloadable CSV is the canonical reference artifact.
- How do I nominate a site for the next refresh?
- Email [email protected] with the domain, the vertical it sits in, and a one-line note on why it would teach the reader something. The research desk triages nominations weekly and replies within ten business days.
The archive is the free tier. The Tuesday newsletter is the operating layer on top of it.
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