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rvb.ru

Русская виртуальная библиотека

Last scanned Aug 24, 2026, 1:22 PM · 1 view

77

Overall score

Fair

Summary

Электронная библиотека для школьников, студентов, преподавателей и исследователей. This website uses Google Analytics behind Cloudflare CDN. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance good (85/100). Top issue: Meta description longer than 160 characters.

Электронная библиотека для школьников, студентов, преподавателей и исследователей. Публикует произведения русской и зарубежной классики по авторитетным академическим изданиям, а также критические, экспериментальные и двуязычные электронные издания.

Top issues to fix

9 issues found · 3 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.

  • 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.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+3 more issues — details in the sections below.

70

SEO

5 issue(s) found

85

Performance

687 ms

65

Security

HTTPS & header checks

90

Accessibility

1 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.

Organization

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

Электронная библиотека для школьников, студентов, преподавателей и исследователей. Публикует произведения русской и зарубежной классики по авторитетным академическим изданиям, а также критические, экспериментальные и двуязычные электронные издания.

Contact

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

Meta tags

Title
Русская виртуальная библиотека
Description
Электронная библиотека для школьников, студентов, преподавателей и исследователей. Публикует произведения русской и зарубежной классики по авторитетным академическим изданиям, а также критические, экспериментальные и двуязычные электронные издания.
Canonical
https://rvb.ru/
Language
ru
Charset
windows-1251
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
Cloudflare
IP address
104.21.11.188
ASN

DNS records

TypeValue
A
  • 104.21.11.188
  • 172.67.192.98
AAAA
  • 2606:4700:3036::6815:bbc
  • 2606:4700:3032::ac43:c062
MX
  • aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx3.googlemail.com
  • aspmx2.googlemail.com
  • alt1.aspmx.l.google.com
TXT
  • google-site-verification=FrIP0sB-kvUWe7umWxAJ0f_rEkG-B43W8owZ2zhGUyw
  • dub-domain-verification=df93fc85-4dbb-429f-9d15-f2624c1a72bd
  • google-site-verification=HMiVPJIfhMz7ZiJfZLCBXxRJBNedmU_zr9mkrWVJkQI
NS
  • lucy.ns.cloudflare.com
  • alan.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
rvb.ru
Valid from
Jul 5, 2026
Valid to
Oct 3, 2026
Days until expiry
39
SAN domains
rvb.ru, *.rvb.ru

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

119 internal · 9 external · 0 broken

Images

4 total · 0 missing alt

Scripts / Styles

47 scripts · 5 stylesheets

JS / CSS size

2.0 MB · 61.9 KB

Page size

44.6 KB

Robots.txt & Sitemap

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

SEO issues

  • Meta description longer than 160 characters
  • No H1 heading found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://rvb.ru
Final URL
https://rvb.ru
HTTP status
200
HTTP version
HTTP/2
Response time
687 ms
HTML size
44.6 KB
Redirect chain
https://rvb.ru

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Frequently asked questions

What technology does rvb.ru use?
rvb.ru is built with Bootstrap, jQuery, Google Analytics, Cloudflare Analytics, Google Ads.
Is rvb.ru secure (HTTPS)?
Yes. rvb.ru uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 3, 2026.
Who hosts rvb.ru?
Hosting provider information for rvb.ru is not available yet.
What is rvb.ru's SEO score?
rvb.ru scored 70/100 for SEO in the latest analysis (fair).
What is rvb.ru's overall website score?
rvb.ru has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.