aosabook.org
Registered
Page analyze update date:
2026/06/16 20:03:54
Last whois update date:
2026/05/25 02:16:25
Domain Status
Registered
Paid till
26.04.2027
Available from
26.05.2027
×
![Fullscreen website screenshot]()
aosabook.org Website screenshot
SEO Score
76.71%
112
Score achieved
146
Maximum score
Main Information
Title: The Architecture of Open Source Applications
Description: unknown
Keywords: unknown
Page Encoding:
utf-8
Page Filesize: 36 KB
Server Information
IP: 185.199.110.153
Location: United States,US,,,37.751,-97.822,America/Chicago
Http Server: github.com
Encoding: utf-8
Meta Tags List
- charset: utf-8
- name: viewport content: width=device-width, initial-scale=1.0
Internal Links
External Links
Whois Information
domain_name: aosabook.org
update_date: 2026-03-04T19:44:04.626Z
update_time: 1772653444
creation_date: 2011-04-26T13:46:13.637Z
creation_time: 1303825573
expiration_date: 2027-04-26T13:46:13.637Z
Whois Raw Data
Domain Name: AOSABOOK.ORG
Registrar: DreamHost, LLC
Domain Status: active
Registry Expiry Date: 2027-04-26T13:46:13.637Z
Creation Date: 2011-04-26T13:46:13.637Z
Updated Date: 2026-03-04T19:44:04.626Z
Name Server: NS1.DREAMHOST.COM
Name Server: NS2.DREAMHOST.COM
Name Server: NS3.DREAMHOST.COM
REGISTRAR Contact: DreamHost, LLC
>>> Last update of RDAP database: 2026-05-25T02:16:25Z
Robots.txt
Sitemap: https://aosabook.org/sitemap.xml
SEO Audit
Technical SEO
✓
Response Code
200
Status 200 OK - page loads correctly.
✓
Character Encoding
Page: utf-8, Header: utf-8
Character encoding consistent between HTML and headers.
✓
Page Size
37135 bytes
Page size acceptable for fast loading.
✓
Resources
7 total
Optimal number of resources.
✓
Hreflang Tags
0 hreflang tags
Add hreflang tags if you have multilingual content.
✓
Robots.txt
Exists
Robots.txt file found.
✓
Sitemap
Declared in robots.txt
Sitemap declared in robots.txt.
✓
HTTPS
Yes
Secure HTTPS connection enabled.
✓
Compression
gzip
Gzip or Zstd compression enabled for faster loading.
✓
Caching
max-age=600
Cache-control headers properly set.
✓
Page Speed
2.97 ms
Excellent loading speed.
On-Page SEO
✓
Title
The Architecture of Open Source Applications
Good title length (30-60 characters).
!
Meta Description
Lenght:0
Add a meta description (100-160 characters recommended).
✓
H1 Heading
1 found - "The Architecture of Open Source Applications"
Good - single H1 heading found.
!
Word Count
473
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
en
Language attribute properly set.
✓
Images
4 total, 0 missing ALT
All images have proper ALT text.
✓
Viewport
width=device-width, initial-scale=1.0
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.