Instant Website Health Reports
Scored /100
Scan any website in seconds. Get a complete analysis across security, SEO, DNS, performance, and email deliverability — all in one scored report.
116+
Website Tools
/100
Health Score
5
Scan Categories
Free
No credit card
Everything we check
5 categories. 116 tools. One report.
Each scan runs every relevant tool in parallel — results appear as they complete.
Security
30+ toolsSSL certificates, security headers, firewall detection, malware & phishing checks, CORS policy, clickjacking protection, and more.
SEO
42+ toolsMeta tags, Core Web Vitals, page speed, keyword density, structured data, canonical tags, sitemap health, and more.
Technical
15+ toolsTTFB, HTTP version, Gzip compression, caching headers, CDN detection, uptime, asset minification, and more.
DNS
11+ toolsDNS records, propagation, DNSSEC validation, IPv6 support, CAA records, nameserver health, reverse DNS, and more.
SPF, DMARC, DKIM authentication, MX records, mail blacklist, SMTP banner, sender reputation, and more.
Full toolkit
All 116 tools in one place
Browse every individual tool, run them standalone, or let a full scan handle everything at once.
Three steps
From URL to insights in seconds
1
Enter URL
Paste any URL. We handle protocol detection automatically.
2
Run 116 checks
All tools fire in parallel. Results stream in as they complete — usually under 30 seconds.
3
Read your report
Get a scored /100 report with specific fixes, pass/fail indicators, and actionable recommendations.
Transparent scoring
Your /100 score, explained
Every point is earned. We weight categories by their real-world impact on your website's health, security, and discoverability.
Category weights
Score tiers
Excellent
Everything is healthy
Good
Minor improvements available
Needs Work
Notable issues present
Critical
Urgent attention required
Built for professionals
Everything you need to monitor your web presence
Scheduled Scans
Set weekly or monthly scans. Stay on top of changes automatically.
Smart Alerts
Get notified by email or SMS when your score drops or issues are detected.
PDF Reports
Download a polished PDF report. Perfect for clients and stakeholders.
Developer API
Integrate scans into your CI/CD pipeline or internal tools via our REST API.
Scan History
Track how your scores change over time. See what improved and what regressed.
CSV Export
Export all scan data to CSV for offline analysis or custom reporting.
10,000+
scans completed
“OnlineCorners flagged a misconfigured HSTS header and exposed admin panel we didn't even know about. Fixed both within an hour.”
Ready to scan your website?
Join thousands of developers and marketers who use OnlineCorners to keep their websites healthy.