onlineschool-1.ru
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Fair
Summary
This website uses Nginx hosted on CCT-AS - OOO _Sovremennye setevye tekhnologii_, RU. SEO is fair (55/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing <title>.
- Russia
- Hosted on CCT-AS - OOO _Sovremennye setevye tekhnologii_, RU
Top issues to fix
10 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing title tag
SEOAdd a unique, descriptive <title> tag — it's the single most important on-page SEO element.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
166 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Meta tags
- Title
- Description
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- CCT-AS - OOO _Sovremennye setevye tekhnologii_, RU
- CDN provider
- —
- IP address
- 195.209.83.148
- ASN
- AS34879 (CCT-AS - OOO _Sovremennye setevye tekhnologii_, RU)
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
- *.onlineschool-1.ru
- Valid from
- Oct 6, 2025
- Valid to
- Nov 7, 2026
- Days until expiry
- 74
- SAN domains
- *.onlineschool-1.ru, onlineschool-1.ru
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 1
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
2 scripts · 0 stylesheets
JS / CSS size
59.5 KB · 2.0 KB
Page size
3.6 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 182
- sitemap.xml
- Found
- URLs in sitemap
- 2743
SEO issues
- Missing <title>
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://onlineschool-1.ru
- Final URL
- https://onlineschool-1.ru
- HTTP status
- 503
- HTTP version
- HTTP/2
- Response time
- 166 ms
- HTML size
- 3.6 KB
- Redirect chain
- https://onlineschool-1.ru
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does onlineschool-1.ru use?
- onlineschool-1.ru is built with Nginx.
- Is onlineschool-1.ru secure (HTTPS)?
- Yes. onlineschool-1.ru uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Nov 7, 2026.
- Who hosts onlineschool-1.ru?
- onlineschool-1.ru is hosted on CCT-AS - OOO _Sovremennye setevye tekhnologii_, RU.
- What is onlineschool-1.ru's SEO score?
- onlineschool-1.ru scored 55/100 for SEO in the latest analysis (fair).
- What is onlineschool-1.ru's overall website score?
- onlineschool-1.ru has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card