rcsb.org
Scanned URL: https://rcsb.org
31
π SEO Score
4 / 13 checks passed
9
π€ LLM Readiness
1 / 11 checks passed
27
β‘ Performance
3 / 11 checks passed
π Extracted Page Tags
Title Tag
None found
Meta Description
None found
H1 Heading
503 Service Unavailable
Canonical URL
None found
π SEO Audit
31/100β Title Tag
No title found.
β Meta Description
No description found.
β
H1 Tag
Found 1 H1 tags. Exactly 1 is recommended.
β Canonical URL
Missing canonical tag.
β Open Graph Tags
Found 0 OG properties (4+ recommended).
β
Indexability
Page allows indexing.
β Mobile Viewport
Missing viewport tag.
β
Image Alt Text
No images found.
β Sitemap
No sitemap found in robots.txt.
β Heading Hierarchy
Missing H1 or H2 tags.
β Internal Links
Found 0 internal links.
β HSTS Security
Missing HSTS header.
β
HTTPS
Loads securely over HTTPS.
π€ LLMO
9/100β Structured Data (JSON-LD)
No JSON-LD found.
β Schema Entities
No schema entities.
β FAQ Schema
Missing FAQ schema.
β Contextual Summary
Description too short for AI context.
β E-E-A-T (Author)
No author meta or schema.
β Organisation Schema
Missing Organization schema.
β Breadcrumb Schema
Missing BreadcrumbList.
β
AI Crawler Access
AI agents not blocked.
β Language Declaration
Missing <html> lang attribute.
β Semantic Structure
No semantic HTML5 wrappers.
β Entity Verification Links
No entity validation links.
β‘ Performance
27/100Network Waterfall (Total: 465ms)
- DNS: 253ms
- Connect: 264ms
- TTFB: 297ms
- Download: 168ms
β
Time to First Byte (TTFB)
TTFB: 297ms (Target: < 600ms).
β
HTML Payload Size
Raw HTML: 0.1KB (Target: < 150KB).
β Text Compression
No Brotli/Gzip detected.
β Cache Policies
Missing Cache-Control headers.
β CDN Usage
No CDN headers found.
β
Secure Delivery (HTTPS)
Served securely.
β Modern Protocol
Using HTTP/1.1.
β Native Lazy Loading
No lazy loading detected.
β Minified Assets
No minified assets linked.
β Preload / Preconnect Hints
Missing preload/preconnect hints.
β Character Set
Missing UTF-8 charset.
π‘οΈ Security & Blacklist
Cleanβ
Domain is clean.
β
Spamhaus DBLVerify β
Lookup inconclusive β use the Verify link to check manually.
β
SURBLVerify β
Not listed β no threats detected.
β
URIBLVerify β
Lookup inconclusive β use the Verify link to check manually.
β
Google Safe BrowsingVerify β
No unsafe content found per Google Safe Browsing.
βοΈ Technologies
Infrastructure & CDN
Apache
π WHOIS
Registrar
Network Solutions, LLC
Expires
2027-02-26
Registered
1998-02-27
Last Updated
2024-01-03
Status
client transfer prohibited
Name Servers
dns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net
π DNS Records
| Type | Value |
|---|---|
| A | 128.6.159.193 |
| MX | alt4.aspmx.l.google.com |
| MX | alt3.aspmx.l.google.com |
| MX | alt2.aspmx.l.google.com |
| MX | alt1.aspmx.l.google.com |
| MX | aspmx.l.google.com |
| TXT | v=spf1 include:_spf.google.com include:_spf.createsend.com ~all |
| TXT | google-site-verification=A8M31jAX8SUgQYzbnF5r-wgykna2i5Hp4J9fziVD9Sg |
| NS | dns1.p03.nsone.net |
| NS | dns2.p03.nsone.net |
| NS | dns3.p03.nsone.net |
| NS | dns4.p03.nsone.net |