landing.runestone.academy
Registered
Page analyze update date:
2026/03/15 14:42:32
Last whois update date:
2026/08/01 10:37:30
Domain Status
Registered
Paid till
13.12.2026
Available from
12.01.2027
×
![Fullscreen website screenshot]()
landing.runestone.academy Website screenshot
SEO Score
34.93%
51
Score achieved
146
Maximum score
Main Information
Title: Free Online Textbooks for Math and Computer Science - Runestone Academy
Description: unknown
Keywords: unknown
Page Encoding:
utf-8
Body and server charset are different!
Page Filesize: 278 KB
Server Information
IP: 104.26.7.14
Http Server: cloudflare
Meta Tags List
- charset: UTF-8
- name: robots content: max-image-preview:large
- name: viewport content: width=device-width,initial-scale=1,shrink-to-fit=no
- name: referrer content: no-referrer-when-downgrade
Internal Links
External Links
Whois Information
domain_name: runestone.academy
update_date: 2025-12-17T08:38:03.025Z
update_time: 1765960683
creation_date: 2014-12-13T23:31:17.173Z
creation_time: 1418513477
expiration_date: 2026-12-13T23:31:17.173Z
Whois Raw Data
Domain Name: RUNESTONE.ACADEMY
Registrar: Tucows Domains Inc.
Domain Status: client transfer prohibited
Domain Status: client update prohibited
Registry Expiry Date: 2026-12-13T23:31:17.173Z
Creation Date: 2014-12-13T23:31:17.173Z
Updated Date: 2025-12-17T08:38:03.025Z
Name Server: PAIGE.NS.CLOUDFLARE.COM
Name Server: OTTO.NS.CLOUDFLARE.COM
REGISTRAR Contact: Tucows Domains Inc.
>>> Last update of RDAP database: 2026-08-01T10:37:30Z
SEO Audit
Technical SEO
✓
Response Code
200
Status 200 OK - page loads correctly.
!
Character Encoding
Page: utf-8, Header:
Character encoding mismatch between HTML and HTTP headers.
✓
Page Size
284851 bytes
Page size acceptable for fast loading.
✓
Resources
17 total
Optimal number of resources.
✓
Hreflang Tags
0 hreflang tags
Add hreflang tags if you have multilingual content.
!
Robots.txt
Missing
Add robots.txt file to control search engine crawling.
!
Sitemap
Not found
Add sitemap.xml and reference it in robots.txt.
✓
HTTPS
Yes
Secure HTTPS connection enabled.
!
Compression
br
Enable gzip or zstd compression to reduce file sizes.
!
Caching
Not set
Add cache-control headers to improve loading speed for returning visitors.
✓
Page Speed
2.46 ms
Excellent loading speed.
On-Page SEO
!
Title
Free Online Textbooks for Math and Computer Science - Runestone Academy
Title too long. Reduce to 30-60 characters to avoid truncation.
!
Meta Description
Lenght:0
Add a meta description (100-160 characters recommended).
!
H1 Heading
2 found - "Free Online Textbooks for Math and Computer Science"
Use only one H1 heading per page. Remove extra H1 tags.
!
Word Count
356
Content somewhat short. Expand to 500+ words for optimal SEO.
!
Canonical Tag
Add canonical tag to prevent duplicate content issues.
✓
Duplicate Meta
[]
No duplicate meta tags found.
✓
Keywords
Meta keywords are optional (not used by major search engines).
Content and UX
!
Language
Add lang attribute to tag for accessibility and SEO.
!
Images
7 total, 5 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width,initial-scale=1,shrink-to-fit=no
Viewport meta tag properly set for mobile devices.
!
Open Graph
Missing: og:title, og:description, og:image, og:url
Add missing OpenGraph tags for social media sharing: og:title, og:description, og:image, og:url
!
Structured Data
0 JSON-LD scripts
Add structured data (JSON-LD) for rich snippets and better SEO.