71
/ 100
B
Good
Overall Domain Score
SEO 62 · LLM 73 · Perf 82
62
π SEO Score
8 / 13 checks passed
73
π€ LLM Readiness
8 / 11 checks passed
82
β‘ Performance
9 / 11 checks passed
π Extracted Page Tags
Title Tag
Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy - SDSS-V
Meta Description
The Sloan Digital Sky Survey-V (SDSS-V) is the first facility providing multi-epoch optical & IR spectroscopy across the entire sky, as well as offering contiguous integral-field spectroscopic coverage of the Milky Way and Local Volume galaxies.
H1 Heading
None found
Canonical URL
https://sdss.org/
π SEO Audit
62/100β Title Tag
Length: 69 chars (Ideal: 30-60).
β Meta Description
Length: 245 chars (Ideal: 50-160).
β H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
β
Canonical URL
Canonical URL is set.
β
Open Graph Tags
Found 8 OG properties (4+ recommended).
β
Indexability
Page allows indexing.
β
Mobile Viewport
Viewport meta tag present.
β Image Alt Text
17 of 27 images missing alt.
β
Sitemap
Sitemap declared.
β Heading Hierarchy
Missing H1 or H2 tags.
β
Internal Links
Found 109 internal links.
β
HSTS Security
HSTS header present.
β
HTTPS
Loads securely over HTTPS.
π€ LLMO
73/100β
Structured Data (JSON-LD)
Found 1 JSON-LD blocks.
β
Schema Entities
Types: breadcrumblist, organization, 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
Business entity defined.
β
Breadcrumb Schema
Site architecture is machine-readable.
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
No entity validation links.
β‘ Performance
82/100Network Waterfall (Total: 45ms)
- DNS: 28ms
- Connect: 30ms
- TTFB: 44ms
- Download: 1ms
β
Time to First Byte (TTFB)
TTFB: 44ms (Target: < 600ms).
β
HTML Payload Size
Raw HTML: 25.4KB (Target: < 150KB).
β
Text Compression
Compression enabled (gzip).
β
Cache Policies
Cache-Control headers set.
β
CDN Usage
Edge delivery detected.
β
Secure Delivery (HTTPS)
Served securely.
β Modern Protocol
Using HTTP/1.1.
β
Native Lazy Loading
Images use loading='lazy'.
β
Minified Assets
Minified .js/.css referenced.
β Preload / Preconnect Hints
Missing preload/preconnect hints.
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
CMS
WordPress
E-Commerce
Magento
Analytics & Tracking
Google AnalyticsGoogle Tag Manager
JavaScript
jQuery
Infrastructure & CDN
Nginx
π WHOIS
Registrar
MarkMonitor Inc.
Expires
2035-03-08
Registered
1998-03-09
Last Updated
2025-10-29
Status
client delete prohibited, client transfer prohibited, client update prohibited
Name Servers
ens1.jhmi.edu, ens1.jhu.edu
π DNS Records
| Type | Value |
|---|---|
| A | 23.185.0.3 |
| MX | mail.inscc.utah.edu |
| TXT | v=spf1 include:_spf.chpc.utah.edu ~all |
| TXT | atlassian-sending-domain-verification=4eca1417-64cb-4c43-8162-f0294178eb76 |
| NS | ens1.jhmi.edu |
| NS | ens1.jhu.edu |