Features · Coverage · Continuous

170+ technical SEO checks.
22 categories. Audited continuously.

Wrendex catches the technical regressions your other SEO stack never built a check for. Duplicate trackers, redundant stylesheets, render-blocking overlaps, hreflang asymmetry, and 170+ other audits, run on every schedule on every site you monitor.

No credit card · Full report in under 12 minutes · All checks on every plan
Sec. F.01 · Coverage ◊Six modules, 170+ audits every check on every page · every audit
M.01 · Crawl Health
HTTP, redirects, sitemaps
  • HTTP 4xx and 5xx detection on every crawled URL
  • Redirect chains, loops, and excessive hop counts
  • Sitemap parse errors, orphan listings, and missing index files
  • Soft-404 detection on 200 responses with empty bodies
  • Crawl-budget waste from canonical-pointing-elsewhere chains
M.02 · Content & Metadata
Titles, descriptions, headings
  • Missing, duplicated, and out-of-range title tags
  • Meta description completeness and length thresholds
  • Heading hierarchy (h1 presence, multiple h1s, level skips)
  • Thin-content and word-count heuristics
  • Stale-content age tracking, calibrated per content type
M.03 · Link Intelligence
Internal & external links
  • Orphan-page detection across crawled internal graph
  • Broken internal and external link reporting
  • Excessive crawl depth, click-depth, and dead-end paths
  • Anchor-text quality and over-optimised anchor patterns
  • Nofollow-pattern auditing on internal navigation
M.04 · Duplicate & Redundant
The bit other tools miss
  • Duplicate analytics trackers loaded twice on the same page
  • Stylesheets imported by two templates on the same render
  • Same library shipped at multiple versions (jQuery 1.x and 3.x)
  • Tag Manager carrying tags already on the page
  • Third-party script overlap across vendors
M.05 · Search Visibility
Indexability, schema, social
  • Canonical correctness, conflicts, and 4xx targets
  • Hreflang return-tag validation across every locale
  • Structured-data validation for all major schema.org types
  • Open Graph + Twitter card validation, image sizing
  • Indexability mismatches between meta-robots and x-robots
M.06 · Security / HTTPS
Mixed content, HSTS, downgrades
  • Mixed-content (insecure subresource) detection
  • HSTS posture, max-age, and preload eligibility
  • HTTPS-to-HTTP redirect chains we shouldn’t see
  • Insecure form actions on otherwise-HTTPS pages
  • Protocol mismatches between canonical and rendered URL
Sec. F.02 · Only on Wrendex ◊What other audit tools don’t check four audits we built because we needed them
D.01
Duplicate-tracker detection
A single page often loads the same analytics provider twice - one direct snippet, one inside Tag Manager. The result is inflated pageviews, doubled TTFB cost, and dashboards that quietly lie. Wrendex flags every duplicate at the network layer.
D.02
Redundant stylesheets
Two templates each pull the same vendor stylesheet on the same render. The cascade picks the second one and the first one is dead weight. Wrendex finds the overlap and ranks it by render-blocking impact.
D.03
Render-blocking overlap finder
Render-blocking resources are well-known. Render-blocking resources that overlap each other - same library, different host, both in the critical path - are not. Wrendex maps every render-blocking request and surfaces the overlap.
D.04
Deploy-aware regression tracking
Every audit is diffed against the previous run. Severity deltas surface first; new errors are ranked by traffic impact. When a deploy lands, the next audit highlights exactly which checks just regressed - no comparing PDFs by hand.
Sec. F.03 · Continuous ◊Monitoring on a schedule, alerts in real time daily · hourly · continuous
Schedule
Choose your cadence per site
Daily on Starter; hourly on Pro; continuous on Agency. Manual re-runs always allowed; spot audits against ad-hoc URLs sit outside your monitored set.
DAILY · HOURLY · CONTINUOUS
Alert composer
Compose alert rules from severity, category, page-set, and threshold
Route per channel: a severity:error rule pages on-call; a category:metadata rule emails marketing.
PRO+
Channels
Email, Slack, Teams, PagerDuty
Email on every plan. Slack and Teams on Pro and above. PagerDuty on Agency, severity-mapped.
EMAIL · SLACK · TEAMS · PD
Regression diffs
Each audit compared to the previous run
New errors ranked by traffic impact; resolved checks confirmed inline.
EVERY PLAN
Webhook events
Outbound HTTPS webhooks for audit lifecycle events
Run start, run end, regression detected, baseline shifted - bring audits into your own tooling.
PRO+
Scheduled reports
Recurring email digests of audit health
Per-recipient cadence; weekly or monthly. Render once, send to as many addresses as you like.
PRO+
Sec. F.04 · Integrations ◊Where the alerts and the data already go alerting · billing · data egress
SlackOAuth app
Microsoft TeamsWebhook
PagerDutySeverity-mapped
StripeBilling
WebhooksOutbound HTTPS
Run a free audit in under 12 minutes. No credit card · All 170+ checks · Full PDF report
Run free audit →