Wrendex is the most advanced site audit tool

Let the wren find SEO problems before you lose revenue. Uncover duplicate code, unexpected content changes, and more.

Free Audit Now

The free audit covers all categories. No email or signup required.

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  • 170+ checks on every crawl
  • Continuous monitoring & alerts
  • Cancel any time
Weathered hanging birdhouse with the Wrendex wren peeking out of the hole
2026.05.30

What we can find in the field

Compiled over many cold mornings. The full taxonomy of issues the catalog identifies on every crawl.

Wooden sign on a post

Simple Pricing Ahead

$4.99/mo
Wrendex Base
One plan. Grows with you through credit top-ups.
$4.99 /month
5,000 crawl credits included each cycle
  • ✓Unlimited sites & team seats
  • ✓5,000 page crawls per month included
  • ✓1 credit per page (2 with real-browser rendering)
  • ✓Top up at discounted rates - up to 90% off in bigger packs
  • ✓Every alert channel: Email, Slack, Teams, PagerDuty
  • ✓White-label reports + custom subdomain
  • ✓SAML SSO & full audit history
Start for $4.99

See the interactive cost calculator for top-up pack pricing.

ComplianceSOC 2 Type II · GDPR · CCPA
Data regionsUS-East today, EU-West coming Q3
Uptime SLA99.9%
BillingMonthly · Stripe
Sec. 01 · Catalog ◊What we detect, in full 22 categories · 170+ checks · incl. detection Ahrefs doesn’t run
#
Category
Checks
Sample check ids
 
01 HTTP Status 7× 404.on-crawled5xx.responseredirect.to-broken → 02 Redirects 10× redirect.chainredirect.loopredirect.too-many-hops → 03 Sitemaps 10× sitemap.malformedsitemap.url-orphansitemap.index-missing → 04 Canonicalization 8× canonical.missingcanonical.conflictcanonical.cross-domain → 05 Indexability 7× noindex.in-sitemapmeta.robots-mismatchx-robots.blocked → 06 Internal Links 14× link.orphan-pagelink.broken-internallink.deep-path → 07 External Links 5× link.broken-externallink.redirect-chainlink.nofollow-audit → 08 Title Tags 6× title.missingtitle.duplicatetitle.out-of-range → 09 Meta Descriptions 6× meta.missingmeta.duplicatemeta.over-length → 10 Headings 4× h1.missingh1.multipleheading.hierarchy-skip → 11 HTML / Markup 2× markup.invalidmarkup.deprecated → 12 Content Quality 2× content.thincontent.word-count-low → 13 Duplicate Content 4× dup.exact-bodydup.near-duplicatedup.duplicate-title → 14 Images 5× img.alt-missingimg.oversizedimg.broken-src → 15 CSS 5× css.duplicate-stylesheetcss.third-party-overlapcss.render-blocking → 16 JavaScript 5× js.duplicate-trackerjs.same-lib-multiple-versionsjs.blocking → 17 Performance 4× perf.duplicate-fetchesperf.tag-manager-bloatperf.lcp-slow → 18 Security / HTTPS 5× mixed-contenthsts.missingredirect.https-to-http → 19 Hreflang 10× hreflang.x-default-missinghreflang.region-invalidhreflang.return-tag-mismatch → 20 Structured Data 19× schema.invalidschema.required-missingschema.type-mismatch → 21 Social Tags 3× og.missingtwitter.card-missingog.image-invalid → 22 AMP 3× amp.validation-erroramp.canonical-missingamp.discrepancy →
Total
144 + 26 advanced
Advanced detection ships on every plan - not an add-on, not an upsell.
Sec. 02 · Coverage ◊Six places we look that other tools don’t every check on every page · every audit
M.01 Crawl Health 7+10+7 checks

HTTP status codes, redirects, timeouts, and broken paths. Wrendex maps every URL and flags every failure.

404 5xx redirect-chain redirect-loop timeout
M.02 Content & Metadata 6+6+4 checks

Titles, descriptions, headings, word counts. Every page checked for completeness and quality signals.

title meta-description h1 thin-content duplicate
M.03 Link Intelligence 14+5 checks

Internal and external links analysed for orphans, broken targets, redirect chains, and nofollow patterns.

orphan broken depth anchor nofollow
M.04 Duplicate & Redundant the bit others miss

We find the same analytics tracker loading twice, the stylesheet imported by two templates, the jQuery shipped in three versions, the tag that’s already inside GTM. The quiet stuff that kills your page-speed score.

duplicate-tracker duplicate-stylesheet multi-version-lib third-party-overlap gtm-bloat
M.05 Search Visibility 8+7+10+19+3+3 checks

Indexability, canonicals, hreflang, structured data, social tags, and AMP, audited against the live Google and schema.org specs.

canonical hreflang schema og amp
M.06 Security / HTTPS 5 checks

Mixed content, protocol mismatches, HSTS posture, and insecure resource loading - caught before search engines notice.

mixed-content hsts downgrade
Sec. 03 · Monitoring ◊Know before Google does continuous audits · alerts in Slack, email, Teams · no watching dashboards
Audit schedule active
Site example.com
Cadence Every 6 hours
Depth Full site · 8,412 pages
Next audit 02 : 14 : 38
Last audit 2h 46m ago · 87/100
Alert when
  • New errors are introduced
  • Health score drops by ≥ 3 points
  • Duplicate scripts or styles appear
  • Weekly digest (every Monday)
Notify via
Slack Email MS Teams PagerDuty
# seo-alerts just now
Wrendex APP 9:42 AM
REGRESSION example.com
Google Analytics is loading 2× on /pricing
Checkjs.duplicate-tracker
Impact+340 ms TTFB · −6 health
First seen14 min ago, after deploy a4c9d2
Affected17 pages sharing the /pricing template
Median alert latency 42 s · Every alert cites the check id & the affected URLs
Sec. 04 · Dashboard ◊Health, trend, and the issue queue on one screen health · trend · issue queue
Health score · 90 d
0 / 100
delta +3 · rank A- · sample 847
Issues found per crawl 12 crawls · weekly
Jan 26 ▸ 54 issues Apr 21 ▸ 39 issues trend -27%
Issue queue · latest crawl
  • Broken pages (404) 2 pages
  • Canonical chains 1 chain
  • Missing meta descriptions 8 pages
  • Redirect chains 3 chains
  • Images without alt text 14 img
  • Thin content (<250 words) 6 pages
  • Over-length titles 11 pages
Sec. 05 · Workflow ◊Paste a URL, then leave it running connect · monitor · fix
Step 01 Connect ~60 s

Paste a URL. That’s the whole setup. No code to install, no tags to add to your site, no sales call.

  • Works on any live site
  • Verify ownership in a click
  • Free first audit, full depth
Step 02 Monitor continuous

Wrendex audits your site on a schedule you set - hourly, daily, weekly - and tracks every issue against the previous run.

  • 170+ checks, every audit
  • Regression tracking per deploy
  • Full-site or spot-check any page
Step 03 Fix alerts in seconds

When something breaks, you get a Slack or email alert with the exact check, the affected pages, and how to fix it. No dashboard babysitting.

  • Prioritised by traffic impact
  • Share a report link with your team
  • Export to PDF or CSV for clients
Sec. 06 · Reports ◊Eight views built for the work share with clients · export to PDF / CSV · white-label on Agency plans
R.01
Health Score History
90-day trend of the aggregate score with per-category severity stacks. Annotate releases to correlate regressions with deploys.
HTML · JSON
R.02
Page Explorer
Filterable table of every crawled URL with status, depth, word count, issue count, and the full list of checks that fired per page.
HTML · CSV
R.03
Link Explorer
Every source→target edge with anchor text, rel attributes, HTTP status, and the canonicalised target. Find broken links in seconds.
HTML · CSV
R.04
Site Structure Map
Click-depth tree rooted at the homepage, with orphan islands surfaced separately. See which pages are buried or unreachable.
SVG · JSON
R.05
Redirect Chains
Every multi-hop redirect with the full path, terminal status, and the internal page that initiated it. Loops are flagged and quarantined.
HTML · CSV
R.06
Duplicate Content
Exact and near-duplicate clusters computed with shingle hashing. Separate reports for title, description, and body-text duplication.
HTML · JSON
R.07
Structured Data
Per-schema validity sheet with line-level errors against schema.org. Warnings and recommended properties called out distinctly.
HTML · JSON-LD
R.08
Resources Report
All images, scripts, and stylesheets across the crawl sorted by size. Find the oversized hero image lurking in a single template.
HTML · CSV
Sec. 07 · What’s new ◊Recent product updates last five shipped · see all →
  1. Apr ’26 2026-04-14 Duplicate-tracker detection now catches the same analytics provider loaded twice on the same page - a leading cause of TTFB bloat we’ve never seen another auditor flag. new
  2. Apr ’26 2026-04-02 Hreflang return-tag validation now checks symmetry across locales; alerts fire the moment a new locale breaks the set. new
  3. Mar ’26 2026-03-18 Regression reports compare each audit to the previous run, with severity deltas ranked by traffic impact. new
  4. Feb ’26 2026-02-27 JavaScript-heavy sites now render in full before auditing; single-page apps and React/Vue sites audit exactly what users see. improved
  5. Feb ’26 2026-02-10 Twenty-four new content-quality checks; stale-content detection and pagination heuristics are now far quieter. polish
Sec. 09 · FAQ ◊Before you ask the four questions we get most
Q.01 · vs. Ahrefs
How is this different from Ahrefs?
Ahrefs is a great research suite: backlinks, keywords, rank tracking, competitor insights. Wrendex is the specialist that goes where their site audit stops - finding duplicate trackers, redundant stylesheets, render-blocking overlaps, and the 170+ other technical issues that quietly erode your rankings. Most of our customers run both.
Q.02 · Setup
How long does setup take?
About 60 seconds. Paste your URL, verify ownership with a click, and your first full audit runs immediately. No tags to add to your site, no code to install, no sales call required to get started.
Q.03 · Monitoring
How often will you audit my site?
Daily on Starter, hourly on Professional, continuous on Agency - and you can trigger an audit on every deploy. You’ll get a Slack or email alert the moment a regression appears, usually in under a minute.
Q.04 · Security
Where is my data stored?
Encrypted at rest in AWS us-east-1 today; eu-west-1 launches in Q3 for tenants that need EU residency. Wrendex is SOC 2 Type II audited and GDPR compliant. Audit results are yours: we never sell, share, or train on them.