number.academy
Registered
Page analyze update date:
2026/03/28 18:53:36
Last whois update date:
2026/03/14 12:01:51
Domain Status
Registered
Paid till
04.11.2026
Available from
04.12.2026
×
![Fullscreen website screenshot]()
number.academy Website screenshot
SEO Score
74.66%
109
Score achieved
146
Maximum score
Main Information
Title: Number academy the encyclopedia of numbers
Description: The encyclopedia of natural numbers, random number generators, Roman numbers, prime numbers etc.
All about natural numbers: basic and advanced mathematics, computing, codes and images, writing and naming in other languages,
interesting data (numerology, history, culture, art, philosophy, biology, physics, chemistry, metaphysics, religion, distances, heights, times, crashed planes, games, ...)
Keywords: empty
Page Encoding:
utf-8
Page Filesize: 547 KB
Server Information
IP: 138.201.27.171
Location: Germany,DE,Falkenstein,08223,50.4777,12.3649,Europe/Berlin
Http Server: apache
Encoding: utf-8
Meta Tags List
- charset: utf-8
- content: width=device-width, initial-scale=1.0 name: viewport
- name: description content: The encyclopedia of natural numbers, random number generators, Roman numbers, prime numbers etc. All about natural numbers: basic and advanced mathematics, computing, codes and images, writing and naming in other languages, interesting data (numerology, history, culture, art, philosophy, biology, physics, chemistry, metaphysics, religion, distances, heights, times, crashed planes, games, ...)
- name: apple-mobile-web-app-title content: Number.academy
- name: format-detection content: telephone=no
- property: og:type content: article
- property: og:url content: https://number.academy
- property: og:site_name content: The encyclopedia of natural numbers
- property: og:title content: Number academy the encyclopedia of numbers
- property: og:description content: The encyclopedia of natural numbers, random number generators, Roman numbers, prime numbers etc. All about natural numbers: basic and advanced mathematics, computing, codes and images, writing and naming in other languages, interesting data (numerology, history, culture, philosophy, biology, physics, chemistry, metaphysics, religion, distances, heights, times, crashed planes, games, ...)
- property: og:image content: https://number.academy/s/img/numeros-0-1-2-3-4-5-6-7-8-9.jpeg
- equiv: origin-trial content: AlK2UR5SkAlj8jjdEc9p3F3xuFYlF6LYjAML3EOqw1g26eCwWPjdmecULvBH5MVPoqKYrOfPhYVL71xAXI1IBQoAAAB8eyJvcmlnaW4iOiJodHRwczovL2RvdWJsZWNsaWNrLm5ldDo0NDMiLCJmZWF0dXJlIjoiV2ViVmlld1hSZXF1ZXN0ZWRXaXRoRGVwcmVjYXRpb24iLCJleHBpcnkiOjE3NTgwNjcxOTksImlzU3ViZG9tYWluIjp0cnVlfQ==
- equiv: origin-trial content: Amm8/NmvvQfhwCib6I7ZsmUxiSCfOxWxHayJwyU1r3gRIItzr7bNQid6O8ZYaE1GSQTa69WwhPC9flq/oYkRBwsAAACCeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXN5bmRpY2F0aW9uLmNvbTo0NDMiLCJmZWF0dXJlIjoiV2ViVmlld1hSZXF1ZXN0ZWRXaXRoRGVwcmVjYXRpb24iLCJleHBpcnkiOjE3NTgwNjcxOTksImlzU3ViZG9tYWluIjp0cnVlfQ==
- equiv: origin-trial content: A9nrunKdU5m96PSN1XsSGr3qOP0lvPFUB2AiAylCDlN5DTl17uDFkpQuHj1AFtgWLxpLaiBZuhrtb2WOu7ofHwEAAACKeyJvcmlnaW4iOiJodHRwczovL2RvdWJsZWNsaWNrLm5ldDo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
- equiv: origin-trial content: A93bovR+QVXNx2/38qDbmeYYf1wdte9EO37K9eMq3r+541qo0byhYU899BhPB7Cv9QqD7wIbR1B6OAc9kEfYCA4AAACQeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXN5bmRpY2F0aW9uLmNvbTo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
- equiv: origin-trial content: A1S5fojrAunSDrFbD8OfGmFHdRFZymSM/1ss3G+NEttCLfHkXvlcF6LGLH8Mo5PakLO1sCASXU1/gQf6XGuTBgwAAACQeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXRhZ3NlcnZpY2VzLmNvbTo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
Internal Links
External Links
Whois Information
domain_name: number.academy
update_date: 2025-10-13T16:46:11.658Z
update_time: 1760373971
creation_date: 2020-11-04T21:01:08.162Z
creation_time: 1604523668
expiration_date: 2026-11-04T21:01:08.162Z
Whois Raw Data
Domain Name: NUMBER.ACADEMY
Registrar: Gransy, s.r.o.
Domain Status: active
Registry Expiry Date: 2026-11-04T21:01:08.162Z
Creation Date: 2020-11-04T21:01:08.162Z
Updated Date: 2025-10-13T16:46:11.658Z
Name Server: NS1.WEBSUPPORT.SK
Name Server: NS2.WEBSUPPORT.SK
Name Server: NS3.WEBSUPPORT.SK
REGISTRAR Contact: Gransy, s.r.o.
>>> Last update of RDAP database: 2026-03-14T12:01:51Z
Robots.txt
User-agent: Mediapartners-Google
Allow: /
Disallow: /search/*
#To exclude all robots from part of the server (py3)
User-agent: *
Disallow: /i/404
Disallow: /i/500
Disallow: /nr/
Disallow: /roman-numbers?num_ara=
Disallow: /roman-numbers?num_rom=
Disallow: *&sa=U&*
Disallow: /search/*
Disallow: /contact/?num=*
User-agent: PetalBot
Disallow: /
User-agent: ClaudeBot
Disallow: /
User-agent: OAI-SearchBot
Disallow: /
User-agent: meta-webindexer
Disallow: /img/
Crawl-delay: 10
User-agent: meta-externalagent
Disallow: /img/
Crawl-delay: 10
User-agent: Yandex
Crawl-delay: 2
User-agent: YandexBot
Crawl-delay: 2
User-agent: Applebot
Crawl-delay: 10
User-agent: SentiBot
Crawl-delay: 30
User-agent: DataForSeoBot
Crawl-delay: 30
User-agent: AhrefsBot
Crawl-Delay: 10
User-agent: Bingbot
Crawl-delay: 10
User-agent: SemrushBot
Disallow: /
User-Agent: ImagesiftBot
Crawl-delay: 5
User-agent: Yandex
Crawl-delay: 2
User-agent: msnbot
Crawl-delay: 2
User-agent: BLEXBot
Disallow: /
User-agent: DotBot
Disallow: /
Sitemap:https://number.academy/siteindex.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
560700 bytes
Page size acceptable for fast loading.
✓
Resources
36 total
Moderate number of resources. Consider combining files.
✓
Hreflang Tags
3 hreflang tags
Hreflang tags found for multilingual SEO.
✓
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
Not set
Add cache-control headers to improve loading speed for returning visitors.
✓
Page Speed
1.05 ms
Excellent loading speed.
On-Page SEO
✓
Title
Number academy the encyclopedia of numbers
Good title length (30-60 characters).
!
Meta Description
The encyclopedia of natural numbers, random number generators, Roman numbers, prime numbers etc.
All about natural numbers: basic and advanced mathematics, computing, codes and images, writing and naming in other languages,
interesting data (numerology, history, culture, art, philosophy, biology, physics, chemistry, metaphysics, religion, distances, heights, times, crashed planes, games, ...) Lenght:395
Meta description too long. Reduce to 100-160 characters.
!
H1 Heading
5 found - "Number.academy the encyclopedia of numbers"
Use only one H1 heading per page. Remove extra H1 tags.
✓
Word Count
7014
Content very comprehensive. Consider breaking into multiple pages if too long.
!
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
12 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
All OG tags present.
All essential OpenGraph tags present.
!
Structured Data
0 JSON-LD scripts
Add structured data (JSON-LD) for rich snippets and better SEO.
Positions in Yandex
Search Phrases - Yandex
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 1 | /517 | ||
| 2 | /250 | ||
| 3(+2) | /4000 | ||
| 3 | /240 | ||
| 3 | /525 | ||
| 3 | /527 | ||
| 3 | /93 | ||
| 4 | /31 | ||
| 4 | /67 | ||
| 4 | /41 |