isc.org Website Health Report
ISC - ISC
Open source software information, blogs, events, downloads and support
Analyzed 8/2/2026, 3:46:05 AM · https://isc.org
Summary
As of August 2, 2026, isc.org scores 69/100 overall (grade C), ranking #306 of 995 websites in the E:LAB STUDIO database — the top 31%. Its strongest area is Technical (90/100); its weakest is Schema (10/100).
Its AI-search visibility (AEO) score is 51/100 — a measure of how citable the page is to AI answer engines like ChatGPT and Perplexity. No JSON-LD structured data was detected — the single highest-impact gap for AI search. Top fixes: Organization schema, FAQ schema, Substantive, descriptive content (heuristic).
Speed scores 85/100: the server answered in 598ms, the HTML weighs 26 KB, compression is on, and 2 render-blocking resources sit in <head>. Security scores 90/100: the site is served over HTTPS and sets every major security header.
Detected tech stack: Hugo 0.121.1. Compared with the database average (61/100 overall), isc.org scores 8 points higher.
How to improve
18Based on this report, here are the highest-impact fixes across SEO, AI-search visibility, speed and security:
Want us to fix these for you?
Request a site fixDetected technologies
SEO
- ✓Title tag present10/10
- ✓Meta description present10/10
- ✓H1 heading present10/10
- ✓Canonical URL set10/10
- ✓Open Graph tags present10/10
- ✓sitemap.xml found10/10
- ✓robots.txt found10/10
- ◐Images have alt text6/10
- ✓Internal links present10/10
- ✗Structured data present0/10
AI Visibility (AEO)
- ✗Organization schema0/15
- ✗FAQ schema0/15
- ◐Substantive, descriptive content (heuristic)11/15
- ✓Company/brand identity (About page or Org schema)10/10
- ✓Author / publish date present10/10
- ✓Structured heading (single clear H1)10/10
- ✓External source/citation links10/10
- ✗Industry/location info0/10
- ✗Price/product info0/5
Schema
- ✗Any JSON-LD present0/20
- ✗Organization0/15
- ✗FAQPage0/15
- ✗LocalBusiness0/15
- ✗Article or Product0/15
- ✗Breadcrumb0/10
- ✓Author/date structured10/10
Technical
- ✓robots.txt found15/15
- ✓sitemap.xml found15/15
- ✓Canonical URL set15/15
- ✓Mobile viewport meta15/15
- ✓Language attribute set10/10
- ✓Open Graph tags10/10
- ✗Title length is optimal0/10
- ✓Description length is optimal10/10
Speed
- ◐Fast server response (TTFB)20/25
- ✓HTML delivered quickly15/15
- ✓Compression enabled15/15
- ✓HTML payload is lean10/10
- ✓Browser caching headers10/10
- ✓Few render-blocking resources15/15
- ✗Images are lazy-loaded0/5
- ✗Images have explicit dimensions0/5
Security
- ✓Served over HTTPS20/20
- ✗HTTP redirects to HTTPS0/10
- ✓TLS certificate not near expiry5/5
- ✓HSTS header15/15
- ✓Content-Security-Policy header12/12
- ✓X-Content-Type-Options: nosniff8/8
- ✓Clickjacking protection8/8
- ✓Referrer-Policy header7/7
- ✓Permissions-Policy header5/5
- ✓No mixed content5/5
- ✓Server version not disclosed5/5
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Check my siteWhat clients said
10 reviews, 5.0 average, 4 of them from repeat clients.
Left on Kmong, Korea's largest freelance marketplace. Shown in the original Korean, word for word — translating someone else's review would be rewriting it.
FAQ about isc.org
What is isc.org's SEO score?
isc.org scores 86/100 for on-page SEO and 69/100 overall (grade C) — rank #306 of 995 sites in the E:LAB STUDIO database.
Is isc.org visible to AI search engines like ChatGPT?
Its AI-visibility score is 51/100 — middling. Highest-impact improvements: Organization schema, FAQ schema.
What technology does isc.org use?
From its public HTML we detected Hugo 0.121.1.
What should isc.org fix first?
Based on this report: Organization schema, FAQ schema. The full prioritized list is in the "How to improve" section below.
When was this report generated?
On August 2, 2026, from publicly fetched HTML. Anyone can re-run the analysis for free to refresh it.
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