mariinsky.ru

https://mariinsky.ru· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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mariinsky.ru

Mobile

Sponsored

Hosting Provider

JSC PeterStar

IP Address

84.204.53.22

Site Location

🇷🇺 Russiavia phone

Server Location

🇷🇺 St Petersburg, Russia

ASN

AS50222

Organization

JSC PeterStar

Server

Nginx

CDN

Nameservers

ns3.mariinsky.ru.ns2.mariinsky.ru.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

318 ms10%

Speed Index

413 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

18 MB

104 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

JSC PeterStar

CDN

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Libraries

CSS Frameworks

Analytics

UI Components

Fonts

Web Servers

SEO Analysis

D52/100

Meta Tags8/15

Content11/12

Headings0/8

Technical15/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness2/4

Mobile2/4

Indexability3/3

mariinsky.rumariinsky.ru

Мариинский театр - Официальный сайт

Title Length35 chars

Recommended: 50-60 chars (~217px / 580px)

Description Length35 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (104/131) — critical for accessibility and SEO

11 issues found

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Crawlability

Sitemap

Type: standard

16,339 URLs

robots.txt

8685 rules

Sitemap reference found

Local SEO

Local Search Readiness

13/100

Poor

4 12 2

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

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

9/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:8%

Words:1,419

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary264w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

37/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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

Forms & Inputs

3/15

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

7/15

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

ARIA & Roles

1/15

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

4 recommendations

•Accessibility recommendation preview...

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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.

18/100

2.28 g

CO₂e / view

18.0 MB

Page Weight

Cleaner Than

New Visitor

2.61 g

Returning (cached)

1.30 g

Annual (10K/mo)

273.6 kg

Emission Segments

Data Center

509 mg

Network

547 mg

Device

1.22 g

Resource Breakdown

JavaScript

68.4 KB

Images

17.7 MB

CSS

167.0 KB

Fonts

2.3 KB

HTML

23.9 KB

Green Hosting Not Verified

JSC PeterStar

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

27.04.2026

Valid Until

26.07.2026

Subject Alternative Names (7)

alania.mariinsky.rumariinsky.com.ruprim.mariinsky.rushop.mariinsky.ruwww.mariinsky.com.ruwww.mariinsky.ruxn--80aqaafeklyn.xn--p1ai

SHA-256 Fingerprint

5A:E8:54:44:59:C7:FD:93:C3:5D:4A:80:4D:7B:AE:28:43:F1:D9:47...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 100s(max-age=100)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Thu, 30 Apr 2026 03:13:20 GMT

expires

Thu, 30 Apr 2026 03:15:00 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (3)

mx.mariinsky.ru

mx4.mariinsky.ru

mx3.mariinsky.ru

Domain Information

mariinsky.ru

Domain Age

26y 2m

Created

25.02.2000

Expires

28.02.2027

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

66/100

Mobile Friendly4 breakpoints

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

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

PT Sans

WCAG Partial

56/100

Readability

/30

20/30

14px · LH 1.43

Hierarchy

/20

9/20

WCAG

/25

14/25

2.2:1 min contrast

Performance

/25

13/25

1 font · 3 req

Heading Font

PT Sans

Body Font

PT Sans

Sans14px

Contrast Ratio

2.2:1

4 issues

Reading Comfort

~47 CPL

Optimal (45–75)

14px

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~47 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 2.2:1).

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

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

GGoogle Fonts

Color Palette

10 unique colors

11.93:1 AAA Light

#ffffff

Primary· 36.8%

#35373b

Text· 7.3%

#080606

Text· 18.7%

#1b1416

Secondary· 7.2%

#425c6b

Secondary· 5.6%

#192833

Primary· 4.9%

#c0cbcc

Secondary· 4.2%

#f8efed

Secondary· 0.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)spb.kassir.ru(1)vk.com(1)culturaltracking.ru(1)ajax.googleapis.com(1)

Website Identity

mariinsky.ru

post@mariinsky.ru

+78123264141

26 years old

Location detected: 🇷🇺 Russiavia phone

RU-CENTER-RUru

Social Profiles

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Last analyzed: 30 Apr 2026 at 03:13

Historical Analysis & Change Tracking