kf21.ru
Registered
Page analyze update date:
2026/02/27 10:11:16
Last whois update date:
2026/02/27 08:33:27
Domain Status
Registered
Paid till
16.08.2026
Available from
16.09.2026
×
![Fullscreen website screenshot]()
kf21.ru Website screenshot
SEO Score
41.1%
60
Score achieved
146
Maximum score
Main Information
Title: Классы Физтех XXI
Description: unknown
Keywords: unknown
Page Encoding:
utf-8
Body and server charset are different!
Page Filesize: 309 KB
Server Information
IP: 94.26.237.245
Location: Russia,RU,St Petersburg,195213,59.9417,30.3096,Europe/Moscow
Http Server: nginx/1.27.1
Meta Tags List
- charset: UTF-8
- property: og:type content: website
- property: og:title content: Классы Физтех XXI
- property: og:url content: https://kf21.ru
- property: og:description content: Повышаем качество образования и мотивацию учащихся с первого класса!
- itemprop: name content: Классы Физтех XXI
- itemprop: description content: Повышаем качество образования и мотивацию учащихся с первого класса!
- name: twitter:site content: Классы Физтех XXI
- name: twitter:title content: Классы Физтех XXI
- name: twitter:description content: Повышаем качество образования и мотивацию учащихся с первого класса!
- name: twitter:domain content: https://kf21.ru
- name: viewport content: width=device-width,initial-scale=1
Internal Links
External Links
Whois Information
domain_name: kf21.ru
taxpayer_id: 5027233072
update_date: on
update_time:
creation_date: 2024-08-16T13:23:21Z
creation_time: 1723814601
Whois Raw Data
domain: KF21.RU
nserver: ns1.reg.ru.
nserver: ns2.reg.ru.
state: REGISTERED, DELEGATED, VERIFIED
org: "Klassi KF 21", LLC
taxpayer-id: 5027233072
registrar: REGRU-RU
admin-contact: http://www.reg.ru/whois/admin_contact
created: 2024-08-16T13:23:21Z
paid-till: 2026-08-16T13:23:21Z
free-date: 2026-09-16
source: TCI
Last updated on 2026-02-27T08:33:01Z
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
316652 bytes
Page size acceptable for fast loading.
!
Resources
57 total
Too many resources. Optimize and combine files for better performance.
✓
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
Not detected
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
3.55 ms
Excellent loading speed.
On-Page SEO
!
Title
Классы Физтех XXI
Title too short. Expand to 30-60 characters for better SEO.
!
Meta Description
Lenght:0
Add a meta description (100-160 characters recommended).
!
H1 Heading
14 found - "Классы ФИЗТЕХ XXI"
Use only one H1 heading per page. Remove extra H1 tags.
✓
Word Count
1214
Good content length (500-2000 words recommended).
!
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
ru
Language attribute properly set.
!
Images
45 total, 15 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width,initial-scale=1
Viewport meta tag properly set for mobile devices.
!
Open Graph
Missing: og:image
Add missing OpenGraph tags for social media sharing: og:image
!
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 | / | ||
| 4 | / | ||
| 7 | / |