cathedral.ru

https://cathedral.ru· First analyzed 19 May 2026· Updated 19 May 2026

Export

cathedral.ru

Mobile

Sponsored

Hosting Provider

JSC "RU-CENTER"

IP Address

195.24.68.12

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS48287

Organization

JSC "RU-CENTER"

Server

OpenResty

Nameservers

ns8-cloud.nic.ru.ns3-l2.nic.ru.ns4-l2.nic.ru.ns8-l2.nic.ru.+1 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint

503 ms10%

Speed Index

654 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.6 MB

63 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

JSC "RU-CENTER"

Technology Stack

4 Technologies Detected

CSS Frameworks

Web Servers

Languages

Customer Support

SEO Analysis

D54/100

Meta Tags10/15

Content9/12

Headings0/8

Technical18/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social2/5

Freshness0/4

Mobile1/4

Indexability3/3

cathedral.rucathedral.ru

Государственный музей "Исаакиевский собор"

Официальный сайт Государственного музея

Title Length42 chars

Recommended: 50-60 chars (~260px / 580px)

Description Length40 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (38/40) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1 URLs

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

12/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:7%

Words:342

Token eff.:Optimal

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary23w

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

8/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

7/100

459 mg

CO₂e / view

3.6 MB

Page Weight

15%

Cleaner Than

New Visitor

525 mg

Returning (cached)

262 mg

Annual (10K/mo)

55.1 kg

Emission Segments

Data Center

103 mg

Network

110 mg

Device

246 mg

Resource Breakdown

JavaScript

292.6 KB

Images

2.7 MB

CSS

613.6 KB

HTML

38.0 KB

Green Hosting Not Verified

JSC "RU-CENTER"

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

214d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

18.11.2025

Valid Until

20.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.cathedral.rucathedral.ru

SHA-256 Fingerprint

3A:A3:24:A6:50:17:E2:51:0D:64:5A:29:A1:C1:85:59:E5:50:7A:DA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, private)

content-type

text/html; charset=UTF-8

date

Tue, 19 May 2026 14:39:24 GMT

server

openresty

x-powered-by

PHP/7.0.33

set-cookie

XSRF-TOKEN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (3)

mx03.nicmail.ru

mx01.nicmail.ru

mx02.nicmail.ru

Domain Information

cathedral.ru

Domain Age

23y 9m

Created

25.08.2002

Expires

26.08.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

67/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

gotha

WCAG AAA

61/100

Readability

/30

21/30

14px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

21/25

7.35:1 min contrast

Performance

/25

11/25

1 font · 4 req

Heading Font

gotha

Body Font

gotha

Sans14px

Contrast Ratio

7.35:1

WCAG AAA (≥7:1)

Reading Comfort

~43 CPL

Narrow lines

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.3:1).

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

11 unique colors

Light

#ffffff

Background· 26.400000000000002%

#b0091b

Primary· 15.4%

#35210e

Accent· 12.8%

#45321c

Secondary· 7.8%

#734525

Accent· 7.5%

#a6886c

Secondary· 7.1%

#201004

Accent· 6.5%

#9e673d

Secondary· 6.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

mc.yandex.ru(1)pos.gosuslugi.ru(1)esir.gov.spb.ru(1)cathedral.ru(1)culturaltracking.ru(1)

Website Identity

cathedral.ru

23 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RUru

Social Profiles

Sponsored

Last analyzed: 19 May 2026 at 14:40

Historical Analysis & Change Tracking