78
/ 100
B
Good
Overall Domain Score
SEO 92 · LLM 64 · Perf 73
92
π SEO Score
12 / 13 checks passed
64
π€ LLM Readiness
7 / 11 checks passed
73
β‘ Performance
8 / 11 checks passed
π Extracted Page Tags
Title Tag
Where Science Lives - Linda Hall Library
Meta Description
A leading independent science research library, the Linda Hall Library brings science, engineering, and technology to life in new and relevant ways.
H1 Heading
ALCHEMY OF KNOWLEDGE
Canonical URL
https://www.lindahall.org
π SEO Audit
92/100β
Title Tag
Length: 40 chars (Ideal: 30-60).
β
Meta Description
Length: 148 chars (Ideal: 50-160).
β
H1 Tag
Found 1 H1 tags. Exactly 1 is recommended.
β
Canonical URL
Canonical URL is set.
β
Open Graph Tags
Found 9 OG properties (4+ recommended).
β
Indexability
Page allows indexing.
β
Mobile Viewport
Viewport meta tag present.
β Image Alt Text
1 of 4 images missing alt.
β
Sitemap
Sitemap declared.
β
Heading Hierarchy
H1 and H2 structure detected.
β
Internal Links
Found 121 internal links.
β
HSTS Security
HSTS header present.
β
HTTPS
Loads securely over HTTPS.
π€ LLMO
64/100β
Structured Data (JSON-LD)
Found 2 JSON-LD blocks.
β
Schema Entities
Types: webpage, website
β FAQ Schema
Missing FAQ schema.
β
Contextual Summary
Description provides good 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
Language set to 'en-US'.
β
Semantic Structure
Uses <main> or <article>.
β
Entity Verification Links
Social/publisher profiles linked.
β‘ Performance
73/100Network Waterfall (Total: 606ms)
- DNS: 253ms
- Connect: 268ms
- TTFB: 390ms
- Download: 216ms
β
Time to First Byte (TTFB)
TTFB: 390ms (Target: < 600ms).
β
HTML Payload Size
Raw HTML: 34.8KB (Target: < 150KB).
β
Text Compression
Compression enabled (gzip).
β
Cache Policies
Cache-Control headers set.
β CDN Usage
No CDN headers found.
β
Secure Delivery (HTTPS)
Served securely.
β Modern Protocol
Using HTTP/1.1.
β
Native Lazy Loading
Images use loading='lazy'.
β Minified Assets
No minified assets linked.
β
Preload / Preconnect Hints
Resource hints found.
β
Character Set
UTF-8 declared.
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
E-Commerce
Magento
Analytics & Tracking
Google Tag Manager
π WHOIS
Registrar
GoDaddy.com, LLC
Registered
1999-08-31T18:43:19Z
Expires
2030-08-31T18:43:19Z
Last Updated
2025-08-23T13:30:10Z
Status
clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited, clientRenewProhibited https://icann.org/epp#clientRenewProhibited, clientTransferProhibited https://icann.org/epp#clientTransferProhibited, clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Servers
ns3-06.azure-dns.org, ns1-06.azure-dns.com, ns2-06.azure-dns.net, ns4-06.azure-dns.info
π DNS Records
| Type | Value |
|---|---|
| A | 75.2.60.5 |
| MX | lindahall-org.mail.protection.outlook.com |
| TXT | v=spf1 mx ip4:204.56.7.15 include:_spf.mailgun.org include:spf.protection.outlook.com include:spf-na.exlibrisgroup.com include:aspmx.pardot.com include:cust-spf.exacttarget.com -all |
| TXT | pardot930643=732c4103b5e6cf8d1f39276e2bad89dc998a78522b26019a46a4ad7511c510d4 |
| TXT | apple-domain-verification=ygqDWmB9ljtWl5Qy |
| TXT | DlnElZexRwQgynWj0PsZq7GWxoK8oXcYvfP41aoy0IuQhYDwY/dKACV6O1jApRE5nCAIRbM0LJHJnWGRrMyljQ== |
| NS | ns2-06.azure-dns.net |
| NS | ns3-06.azure-dns.org |
| NS | ns4-06.azure-dns.info |
| NS | ns1-06.azure-dns.com |
⭐ Community Rating
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