What technology does gcras.ru use?

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

Is gcras.ru secure (HTTPS)?

Yes. gcras.ru uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 22, 2026.

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

What is gcras.ru's SEO score?

gcras.ru scored 50/100 for SEO in the latest analysis (fair).

What is gcras.ru's overall website score?

gcras.ru has an overall SiteGraph score of 66/100, combining SEO, performance, security, and accessibility.

gcras.ru

Геофизический центр РАН

Last scanned Aug 24, 2026, 1:22 PM · 2 views

Overall score

Fair

Summary

This website uses Nginx. SEO is fair (50/100) and accessibility is fair (50/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

15 issues found · 5 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

+9 more issues — details in the sections below.

SEO

7 issue(s) found

100

Performance

332 ms

Security

HTTPS & header checks

Accessibility

3 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Contact

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

Email: gcras@gcras.ru
Phone: +74959300546

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: gcras.ru
Valid from: Aug 24, 2026
Valid to: Nov 22, 2026
Days until expiry: 89
SAN domains: gcras.ru, www.gcras.ru

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 4 · H3 1

Links

74 internal · 27 external · 20 broken

Images

61 total · 55 missing alt

Scripts / Styles

13 scripts · 3 stylesheets

JS / CSS size

6.2 KB · 1.5 KB

Page size

62.4 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://gcras.ru
Final URL: https://gcras.ru
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 331 ms
HTML size: 62.4 KB
Redirect chain: https://gcras.ru

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does gcras.ru use?: gcras.ru is built with PHP, jQuery, Nginx.
Is gcras.ru secure (HTTPS)?: Yes. gcras.ru uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 22, 2026.
Who hosts gcras.ru?: Hosting provider information for gcras.ru is not available yet.
What is gcras.ru's SEO score?: gcras.ru scored 50/100 for SEO in the latest analysis (fair).
What is gcras.ru's overall website score?: gcras.ru has an overall SiteGraph score of 66/100, combining SEO, performance, security, and accessibility.