21-school.ru
Обучение программированию с нуля в Школе 21 - бесплатные IT курсы с трудоустройством от Сбера
Last scanned Aug 2, 2026, 6:00 AM · 4 views
Overall score
Great
Summary
Программирование с нуля в «Школе 21» от Сбербанка с трудоустройством. This website uses Next.js. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
Программирование с нуля в «Школе 21» от Сбербанка с трудоустройством. Рассказываем, как начать учиться программированию в бесплатной школе цифровых технологий.
Top issues to fix
10 issues found · 1 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+4 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
972 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+3 overall since Jul 26, 2026
- Overall
- 85
- SEO
- 70
- Security
- 85
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Программирование с нуля в «Школе 21» от Сбербанка с трудоустройством. Рассказываем, как начать учиться программированию в бесплатной школе цифровых технологий.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Обучение программированию с нуля в Школе 21 - бесплатные IT курсы с трудоустройством от Сбера
- Description
- Программирование с нуля в «Школе 21» от Сбербанка с трудоустройством. Рассказываем, как начать учиться программированию в бесплатной школе цифровых технологий.
- Canonical
- Language
- ru
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://21-school.ru/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- GlobalSign nv-sa
- Subject
- *.21-school.ru
- Valid from
- Oct 6, 2025
- Valid to
- Nov 7, 2026
- Days until expiry
- 97
- SAN domains
- *.21-school.ru, autodiscover.21-school.ru, mail.21-school.ru, owa.21-school.ru, 21-school.ru
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 11 · H3 11
Links
26 internal · 3 external · 20 broken
Images
23 total · 0 missing alt
Scripts / Styles
20 scripts · 5 stylesheets
JS / CSS size
234 KB · 0 B
Page size
330 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- Missing canonical link
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://21-school.ru
- Final URL
- https://21-school.ru
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 966 ms
- HTML size
- 330 KB
- Redirect chain
- https://21-school.ru
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does 21-school.ru use?
- 21-school.ru is built with Next.js, Nginx.
- Is 21-school.ru secure (HTTPS)?
- Yes. 21-school.ru uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Nov 7, 2026.
- Who hosts 21-school.ru?
- Hosting provider information for 21-school.ru is not available yet.
- What is 21-school.ru's SEO score?
- 21-school.ru scored 70/100 for SEO in the latest analysis (fair).
- What is 21-school.ru's overall website score?
- 21-school.ru has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- Has 21-school.ru's score changed over time?
- 21-school.ru's overall score has improved by 3 points (from 82 to 85) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card