12factor.net
Registered
Page analyze update date:
2026/03/29 05:17:26
Last whois update date:
2026/03/15 15:54:47
Domain Status
Registered
Paid till
20.10.2027
Available from
19.11.2027
×
![Fullscreen website screenshot]()
12factor.net Website screenshot
SEO Score
43.15%
63
Score achieved
146
Maximum score
Main Information
Title: The Twelve-Factor App
Description: A methodology for building modern, scalable, maintainable software-as-a-service apps.
Keywords: empty
Page Encoding:
utf-8
Page Filesize: 30 KB
Server Information
IP: 18.239.18.20
Location: United States,US,,,37.751,-97.822,America/Chicago
Encoding: utf-8
Meta Tags List
- charset: utf-8
- name: description content: A methodology for building modern, scalable, maintainable software-as-a-service apps.
- name: author content: Adam Wiggins
- name: viewport content: width=device-width, initial-scale=1.0
Internal Links
External Links
Whois Information
domain_name: 12factor.net
update_date: 2025-09-18T09:09:53Z
update_time: 1758186593
creation_date: 2011-10-20T21:36:10Z
creation_time: 1319146570
expiration_date: 2027-10-20T21:36:10Z
Whois Raw Data
Domain Name: 12FACTOR.NET
Registrar: MarkMonitor Inc.
Domain Status: client delete prohibited
Domain Status: client transfer prohibited
Domain Status: client update prohibited
Creation Date: 2011-10-20T21:36:10Z
Registry Expiry Date: 2027-10-20T21:36:10Z
Updated Date: 2025-09-18T09:09:53Z
Name Server: DNS1.P01.NSONE.NET
Name Server: DNS2.P01.NSONE.NET
Name Server: DNS3.P01.NSONE.NET
Name Server: DNS4.P01.NSONE.NET
Name Server: NS01.HEROKUDNS.NET
Name Server: NS02.HEROKUDNS.NET
Name Server: NS03.HEROKUDNS.NET
Name Server: NS04.HEROKUDNS.NET
REGISTRAR Contact: MarkMonitor Inc.
>>> Last update of RDAP database: 2026-03-15T15:54:47Z
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
31622 bytes
Page size acceptable for fast loading.
✓
Resources
29 total
Moderate number of resources. Consider combining files.
✓
Hreflang Tags
20 hreflang tags
Hreflang tags found for multilingual SEO.
!
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
3.35 ms
Excellent loading speed.
On-Page SEO
!
Title
The Twelve-Factor App
Title too short. Expand to 30-60 characters for better SEO.
!
Meta Description
A methodology for building modern, scalable, maintainable software-as-a-service apps. Lenght:85
Meta description too short. Expand to 100-160 characters.
!
H1 Heading
5 found - "The Twelve-Factor App"
Use only one H1 heading per page. Remove extra H1 tags.
!
Word Count
410
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
empty
Meta keywords set (note: not used by major search engines).
Content and UX
✓
Language
en
Language attribute properly set.
!
Images
2 total, 1 missing ALT
Add ALT text to images for accessibility and SEO.
✓
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.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 1(+1) | /ru/codebase | ||
| 8 | /ru/dependencies | ||
| 12 | /ru/ | ||
| 16 | / | ||
| 25 | /ru/ |