lsst.org

Scanned URL: https://lsst.org

📅 Scan completed: April 19, 2026 at 4:15 PM

40
/ 100
F
Poor
Overall Domain Score
SEO 46 · LLM 27 · Perf 45
46

πŸ” SEO Score

6 / 13 checks passed

27

πŸ€– LLM Readiness

3 / 11 checks passed

45

⚑ Performance

5 / 11 checks passed

πŸ“ Extracted Page Tags
Title Tag
Rubin Observatory | Opening a digital window for discovery of the dynamic universe.
Meta Description
None found
H1 Heading
None found
Canonical URL
https://lsst.org/
πŸ” SEO Audit
46/100
❌ Title Tag
Length: 83 chars (Ideal: 30-60).
❌ Meta Description
No description found.
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
βœ… Canonical URL
Canonical URL is set.
βœ… Open Graph Tags
Found 5 OG properties (4+ recommended).
βœ… Indexability
Page allows indexing.
βœ… Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
5 of 6 images missing alt.
❌ Sitemap
No sitemap found in robots.txt.
❌ Heading Hierarchy
Missing H1 or H2 tags.
βœ… Internal Links
Found 44 internal links.
❌ HSTS Security
Missing HSTS header.
βœ… HTTPS
Loads securely over HTTPS.
πŸ€– LLMO
27/100
❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
❌ Contextual Summary
Description too short for AI context.
βœ… E-E-A-T (Author)
Author identity found.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
βœ… AI Crawler Access
AI agents not blocked.
βœ… Language Declaration
Language set to 'en'.
❌ Semantic Structure
No semantic HTML5 wrappers.
❌ Entity Verification Links
No entity validation links.
⚑ Performance
45/100
Network Waterfall (Total: 914ms)
  • DNS: 12ms
  • Connect: 85ms
  • TTFB: 841ms
  • Download: 73ms
❌ Time to First Byte (TTFB)
TTFB: 841ms (Target: < 600ms).
βœ… HTML Payload Size
Raw HTML: 63.1KB (Target: < 150KB).
❌ Text Compression
No Brotli/Gzip detected.
βœ… Cache Policies
Cache-Control headers set.
❌ CDN Usage
No CDN headers found.
βœ… Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
❌ Native Lazy Loading
No lazy loading detected.
βœ… Minified Assets
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
βœ… Character Set
UTF-8 declared.
πŸ›‘οΈ Security & Blacklist
Clean
βœ… Domain is clean.
βœ… Spamhaus DBLVerify β†—
Lookup inconclusive β€” use the Verify link to check manually.
βœ… SURBLVerify β†—
Not listed β€” no threats detected.
βœ… URIBLVerify β†—
Not listed β€” no threats detected.
βœ… Google Safe BrowsingVerify β†—
No unsafe content found per Google Safe Browsing.
βš™οΈ Technologies
CMS
Drupal
E-Commerce
Magento
Analytics & Tracking
Google Analytics
JavaScript
jQuery
CSS Frameworks
BootstrapFont Awesome
Infrastructure & CDN
ApachePHP
πŸ“‹ WHOIS
Registrar
NetEarth One Inc. d/b/a NetEarth
Registered
2002-07-04T12:14:03Z
Expires
2027-07-04T12:19:32Z
Last Updated
2022-02-07T18:32:11Z
Status
clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Servers
ns-1296.awsdns-34.org, ns-1750.awsdns-26.co.uk, ns-488.awsdns-61.com, ns-635.awsdns-15.net
πŸ”— DNS Records
TypeValue
A140.252.201.22
MXalt1.aspmx.l.google.com
MXalt2.aspmx.l.google.com
MXaspmx.l.google.com
MXalt3.aspmx.l.google.com
MXalt4.aspmx.l.google.com
MXim.emailsecurity.trendmicro.com
MXmailfiltertm.lsst.org
TXTgoogle-site-verification=u28cxc9djGu41BCUVeXY3DWhvbCEXDSGTBCa1dJJuLY
TXTny+q8da6tjzSeF8O0Es+RoRaI7HuxtQiyIxOrPuUF8JNq0FcovXezIdMD53WS/Dih704U7zkRgYJoMouTbCAEA==
TXTv=spf1 mx a ip4:140.252.32.0/24 ip4:139.229.135.0/24 ip4:139.229.136.0/24 ip4:140.252.201.0/24 ip6:2002:8cfc:2019::8cfc:2019 ip6:2002:8cfc:2065::8cfc:2065 ip6:2002:8be5:8819::8be5:8819 ~all
TXTworkplace-domain-verification=skLwqEFDufSSWbPWGLBRB0jQ0QqMtA
TXTatlassian-domain-verification=6sod/jhCb9OffEqa2YurASihfrUHzxEX9uZ2rX9LczCvQ4tk8tK9k8G9STHRMhFk
TXTatlassian-domain-verification=CL5BZkp7znqS7/nvO7qX9JbT6hnrvgdL7mbN3LjhPrGQjVN2WrynD8fQlRVgVzmQ
NSns-488.awsdns-61.com
NSns-635.awsdns-15.net
NSns-1296.awsdns-34.org
NSns-1750.awsdns-26.co.uk
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