ck12.org
Scanned URL: https://ck12.org
38
π SEO Score
5 / 13 checks passed
45
π€ LLM Readiness
5 / 11 checks passed
64
β‘ Performance
7 / 11 checks passed
π Extracted Page Tags
Title Tag
CK12-Foundation
Meta Description
None found
H1 Heading
None found
Canonical URL
None found
π SEO Audit
38/100β Title Tag
Length: 15 chars (Ideal: 30-60).
β Meta Description
No description found.
β H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
β Canonical URL
Missing canonical tag.
β Open Graph Tags
Found 1 OG properties (4+ recommended).
β
Indexability
Page allows indexing.
β
Mobile Viewport
Viewport meta tag present.
β Image Alt Text
1 of 1 images missing alt.
β
Sitemap
Sitemap declared.
β Heading Hierarchy
Missing H1 or H2 tags.
β Internal Links
Found 0 internal links.
β
HSTS Security
HSTS header present.
β
HTTPS
Loads securely over HTTPS.
π€ LLMO
45/100β
Structured Data (JSON-LD)
Found 1 JSON-LD blocks.
β
Schema Entities
Types: organization
β FAQ Schema
Missing FAQ schema.
β Contextual Summary
Description too short for AI context.
β
E-E-A-T (Author)
Author identity found.
β
Organisation Schema
Business entity defined.
β Breadcrumb Schema
Missing BreadcrumbList.
β AI Crawler Access
robots.txt blocks AI crawlers.
β
Language Declaration
Language set to 'en'.
β Semantic Structure
No semantic HTML5 wrappers.
β Entity Verification Links
No entity validation links.
β‘ Performance
64/100Network Waterfall (Total: 629ms)
- DNS: 0ms
- Connect: 0ms
- TTFB: 24ms
- Download: 605ms
β
Time to First Byte (TTFB)
TTFB: 24ms (Target: < 600ms).
β
HTML Payload Size
Raw HTML: 2.3KB (Target: < 150KB).
β
Text Compression
Compression enabled (gzip).
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
Minified .js/.css referenced.
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
Infrastructure & CDN
Apache
π WHOIS
Registrar
Amazon Registrar, Inc.
Expires
2028-12-16
Registered
2006-12-16
Last Updated
2025-08-07
Status
client delete prohibited, client transfer prohibited, client update prohibited
Name Servers
ns-1136.awsdns-14.org, ns-161.awsdns-20.com, ns-1687.awsdns-18.co.uk, ns-977.awsdns-58.net
π DNS Records
| Type | Value |
|---|---|
| A | 18.239.6.61 |
| A | 18.239.6.124 |
| A | 18.239.6.58 |
| A | 18.239.6.95 |
| MX | mail.ck12.org |
| MX | aspmx.l.google.com |
| MX | alt1.aspmx.l.google.com |
| MX | alt2.aspmx.l.google.com |
| MX | aspmx2.aspmx.l.google.com |
| MX | aspmx4.aspmx.l.google.com |
| MX | aspmx5.aspmx.l.google.com |
| TXT | apple-domain-verification=QF7bv1DM6D2BfMs3 |
| TXT | cursor-domain-verification-ew622e=uyKh14stiqt17t91aYjIpgM0E |
| TXT | facebook-domain-verification=2f23smij2mb05apqoaktiu7od6tn98 |
| TXT | google-site-verification=5I-w_GO6CfZA1FDARhrWTvsloNHQJnWB3WpzO96Q5mI |
| TXT | google-site-verification=E3NQxLaOaxNDjKuRkg4JntlxjO0OkaV7R1i0iMIVMMI |
| TXT | openai-domain-verification=dv-9DfgnOGcp8UMZOccoCfU0yya |
| TXT | v=spf1 ip4:174.129.252.43 ip4:63.236.100.0/24 ip4:66.77.16.0/24 include:emsd1.com include:amazonses.com include:_spf.google.com include:mail.zendesk.com -all |
| TXT | 5dju5ttjauifkg3ntug8uvdp5o |
| TXT | MS=83D3333E19A93E86CB7555359D6048EE1B9BCFEA |
| TXT | MS=ms18161979 |
| NS | ns-161.awsdns-20.com |
| NS | ns-1687.awsdns-18.co.uk |
| NS | ns-977.awsdns-58.net |
| NS | ns-1136.awsdns-14.org |