What technology does ctdl.ru use?

ctdl.ru is built with PHP, jQuery, Nginx.

Is ctdl.ru secure (HTTPS)?

Yes. ctdl.ru uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 15, 2026.

Hosting provider information for ctdl.ru is not available yet.

What is ctdl.ru's SEO score?

ctdl.ru scored 80/100 for SEO in the latest analysis (great).

What is ctdl.ru's overall website score?

ctdl.ru has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

Has ctdl.ru's score changed over time?

ctdl.ru's overall score has declined by 3 points (from 93 to 90) since Jul 26, 2026.

ctdl.ru

Компания Цитадель — разработка и внедрение решений СОРМ для операторов связи

Last scanned Aug 3, 2026, 12:00 PM · 12 views

Overall score

Excellent

Summary

Компания Цитадель. This website uses Nginx. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Цитадель

Компания Цитадель. Высококачественные решения СОРМ для фильтрации трафика от компании Цитадель. Комплексные решения для телефонии +7 (495) 666-23-33

Top issues to fix

8 issues found · 1 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

SEO

4 issue(s) found

100

Performance

372 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 26, 2026

Overall: 90
SEO: 80
Security: 85
Performance: 100
Accessibility: 100

Organization

Company details published in this site's own structured data.

Цитадель

Contact

Email, phone, and address published on this site's own pages.

Email: info@ctdl.ru
Phone: +7 (495) 666-23-33 +74956662333 +78314221177

Meta tags

Title: Компания Цитадель — разработка и внедрение решений СОРМ для операторов связи
Description: Компания Цитадель. Высококачественные решения СОРМ для фильтрации трафика от компании Цитадель. Комплексные решения для телефонии +7 (495) 666-23-33
Canonical: https://ctdl.ru/
Language: ru
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0, maximum-scale=1.0
Robots meta: index, follow
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP jQuery Nginx

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: Let's Encrypt
Subject: ctdl.ru
Valid from: Jul 17, 2026
Valid to: Oct 15, 2026
Days until expiry: 72
SAN domains: ctdl.ru, www.ctdl.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 1 · H3 0

Links

21 internal · 2 external · 5 broken

Images

8 total · 0 missing alt

Scripts / Styles

18 scripts · 6 stylesheets

JS / CSS size

5.0 KB · 170 KB

Page size

88.5 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
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://ctdl.ru
Final URL: https://ctdl.ru
HTTP status: 200
HTTP version: HTTP/2
Response time: 371 ms
HTML size: 88.5 KB
Redirect chain: https://ctdl.ru

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does ctdl.ru use?: ctdl.ru is built with PHP, jQuery, Nginx.
Is ctdl.ru secure (HTTPS)?: Yes. ctdl.ru uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 15, 2026.
Who hosts ctdl.ru?: Hosting provider information for ctdl.ru is not available yet.
What is ctdl.ru's SEO score?: ctdl.ru scored 80/100 for SEO in the latest analysis (great).
What is ctdl.ru's overall website score?: ctdl.ru has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
What company operates ctdl.ru?: ctdl.ru is operated by Цитадель. Компания Цитадель. Высококачественные решения СОРМ для фильтрации трафика от компании Цитадель. Комплексные решения для телефонии +7 (495) 666-23-33
Has ctdl.ru's score changed over time?: ctdl.ru's overall score has declined by 3 points (from 93 to 90) since Jul 26, 2026.