# SEO Monitor

> Technical SEO audit and 24/7 website monitoring platform by Crocopliers.

SEO Monitor is a web-based tool that runs comprehensive technical SEO audits and continuously monitors websites for issues. It collects data from multiple sources (Google Search Console, Google Analytics 4, Yandex Webmaster, Bing Webmaster Tools, PageSpeed Insights, PostHog), stores it historically, and provides actionable insights through charts, reports, and alerts.

## What SEO Monitor Does

### Technical SEO Audit
- Sitemap.xml analysis: discovers all URLs, checks response codes, finds missing pages
- Meta tags validation: title, description, Open Graph, Twitter Cards — presence and length
- Heading hierarchy check: missing H1, multiple H1s, heading level skips
- Noindex detection: meta tags and X-Robots-Tag headers
- Robots.txt analysis: allowed/disallowed paths per user-agent
- Image alt tag audit: counts images with/without alt text per page
- Schema markup detection: JSON-LD, Microdata — types found per page
- Broken link detection: internal and external links returning errors
- LLMs.txt detection: checks for the emerging AI crawler instruction standard

### Content Monitoring
- Daily page snapshots: stores full page structure (title, headings, body text, meta tags, word count)
- Content change detection: compares current page against previous snapshot, shows exactly what changed
- Section-based diff view: side-by-side comparison with clickable URLs to changed pages
- Content export as Markdown: single page, selected pages, or bulk export as ZIP — ready for AI agent analysis

### Data Sources & Integrations
- Google Search Console: per-query impressions, clicks, CTR, position by page/country/device. OAuth2.
- Google Analytics 4: per-page sessions, users, pageviews, bounce rate. OAuth2.
- Yandex Webmaster: per-query daily data for the CIS market. OAuth2.
- Bing Webmaster Tools: per-query metrics and daily traffic stats. API key.
- PageSpeed Insights: Lighthouse scores (Performance, LCP, CLS, INP, FCP) for mobile and desktop. API key.
- PostHog: daily event counts, session recording counts. API key.

### Rankings & Traffic Analysis
- Historical data collection: all metrics stored over time for any-period comparison
- Traffic charts: compare week-to-week, month-to-month, year-over-year
- Content change events overlaid on traffic charts: see which edit caused a ranking drop or spike
- Custom events on timeline: ad campaigns, email blasts, redesigns — visual correlation

### Competitor Monitoring
- Add any public URL as a competitor project
- Crawl competitor pages: titles, headings, meta tags, content, word count, schema, links
- Track competitor content changes over time
- Export competitor content as Markdown for AI-powered comparative analysis

### Uptime Monitoring
- HTTP availability checks: up/degraded/down states with configurable intervals (1 min to 1 hour)
- Incident detection: 2 consecutive failures to open, 2 successes to close — no false alarms
- Email alerts: immediate DOWN and RECOVERED notifications with downtime duration
- Status-page uptime bar: visual timeline color-coded by availability (green/orange/red)
- Response time chart: track performance trends even when the site is technically up
- Resolution toggle: 24h (hourly), 30d (daily), 90d (daily) views
- Incidents table: recent downtime events with duration, cause, and failed check count
- 30-day uptime percentage in project header, color-coded
- Configurable degraded threshold (100ms–30,000ms), custom monitoring URL
- SEO correlation: overlay downtime on traffic and ranking charts to spot impact

### Automation & Reports
- Scheduled data collection: cron schedules per data source (daily, weekly, custom)
- Auto-generated Markdown reports after each collection cycle
- AI task generation: actionable task lists prioritized by impact
- Page importance score: auto-calculated from real traffic data

### Team Features
- Multi-user access: admin (full access) and owner (sees own projects) roles
- Google Sign-In authentication
- Quick links to PostHog, GSC, GA directly from project pages

## Technical Details
- Built with Python (FastAPI), SQLite, Chart.js
- Self-hosted on DigitalOcean, available at https://seo.iamsimpl.com
- Free during public beta, no credit card required
- No installation needed: just enter a URL to start an audit

## Features
- Uptime Monitoring — Know When Your Site Goes Down Before Google Does: https://seo.iamsimpl.com/features/uptime-monitoring

## Guides
- What Is Content Change Detection and Why SEOs Need It: https://seo.iamsimpl.com/guides/content-change-detection
- Technical SEO Audit Checklist: 21 Things to Check on Every Page: https://seo.iamsimpl.com/guides/technical-seo-audit-checklist
- SEO Monitoring: The Complete Guide: https://seo.iamsimpl.com/guides/seo-monitoring-complete-guide
- How to Find and Fix Broken Links on Your Website: https://seo.iamsimpl.com/guides/find-fix-broken-links
- Yandex SEO: A Complete Guide for Non-Russian Markets: https://seo.iamsimpl.com/guides/yandex-seo-guide
- Google Search Console for SEOs: Beyond the Basics: https://seo.iamsimpl.com/guides/google-search-console-advanced

## Blog
- 5 Website Changes That Kill SEO Rankings Overnight: https://seo.iamsimpl.com/blog/website-changes-kill-seo
- How to Detect Content Changes That Hurt SEO: https://seo.iamsimpl.com/blog/detect-content-changes-seo
- DIY SEO Audit for Small Business: Step-by-Step: https://seo.iamsimpl.com/blog/diy-seo-audit-small-business
- How to Set Up SEO Alerts That Actually Matter: https://seo.iamsimpl.com/blog/seo-alerts-that-matter
- Best Free SEO Monitoring Tools in 2026: https://seo.iamsimpl.com/blog/free-seo-monitoring-tools-2026
- Google Not Indexing Your Pages? A Troubleshooting Guide: https://seo.iamsimpl.com/blog/google-not-indexing-pages
- Page Speed Monitoring: What to Track and How Often: https://seo.iamsimpl.com/blog/page-speed-monitoring
- Do Broken Links Actually Hurt SEO Rankings?: https://seo.iamsimpl.com/blog/broken-links-seo-impact
- Why Your SEO Dashboard Should Track 3 Search Engines: https://seo.iamsimpl.com/blog/track-three-search-engines

## Links
- Homepage: https://seo.iamsimpl.com
- Features: https://seo.iamsimpl.com/features
- Guides: https://seo.iamsimpl.com/guides
- Blog: https://seo.iamsimpl.com/blog
- Login: https://seo.iamsimpl.com/login
- Privacy Policy: https://seo.iamsimpl.com/privacy
- Terms of Service: https://seo.iamsimpl.com/terms