redkassa.ru

https://redkassa.ru· First analyzed 20 May 2026· Updated 20 May 2026

Export

redkassa.ru

Mobile

Sponsored

Hosting Provider

Selectel Ltd.

IP Address

78.155.198.193

Site Location

🇷🇺 Russiavia phone

Server Location

🇷🇺 Moscow, Russia

ASN

AS51115

Organization

Selectel Ltd.

Server

QRATOR

Nameservers

b.ns.selectel.ru.a.ns.selectel.ru.d.ns.selectel.ru.c.ns.selectel.ru.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.9 s10%

Speed Index

2.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

580 KB

80 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Selectel Ltd.

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Frameworks

SEO Analysis

B74/100

Meta Tags8/15

Content10/12

Headings8/8

Technical23/25

E-E-A-T5/7

Images3/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

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Title truncated. Description truncated.

Title Length91 chars

Recommended: 50-60 chars (~564px / 580px)

Description Length198 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (91 chars, ~564px). Will be truncated in search results.

7 issues found

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Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

121 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100

Needs Work

7 10

Sponsored

AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

5/25

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:4%

Words:1,882

Token eff.:Optimal

Sections/1K:3.2

Depth:1/5

Structured Data

51 JSON-LD

Organization×1.1Event

sameAs entity links

Citation Readiness

Opening Summary20w

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

60/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

17/20

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

Forms & Inputs

5/15

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

9/15

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.

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.

54/100

72 mg

CO₂e / view

580.5 KB

Page Weight

80%

Cleaner Than

New Visitor

82 mg

Returning (cached)

41 mg

Annual (10K/mo)

8.6 kg

Emission Segments

Data Center

16 mg

Network

17 mg

Device

39 mg

Resource Breakdown

JavaScript

440.2 KB

Images

32.4 KB

CSS

1.6 KB

HTML

50.6 KB

Other

55.6 KB

Green Hosting Not Verified

Selectel Ltd.

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

166d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

01.10.2025

Valid Until

02.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (5)

*.redkassa.ruautodiscover.redkassa.rumail.redkassa.ruowa.redkassa.ruredkassa.ru

SHA-256 Fingerprint

92:11:B4:21:F7:39:E2:8B:F7:B1:46:7B:B6:1B:83:68:18:EF:60:D9...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Wed, 20 May 2026 01:06:06 GMT

keep-alive

timeout=15

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

emx.mail.ru

Domain Information

redkassa.ru

Domain Age

16y 1m

Created

02.04.2010

Expires

02.04.2027

Registrar

REGRU-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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 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=1.0

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Tahoma

WCAG Partial

66/100

Readability

/30

21/30

14px · LH 1.43

Hierarchy

/20

12/20

1.71x ratio · ✓ H1→H6

WCAG

/25

17/25

2.55:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Tahoma

Sans24px

Body Font

Tahoma

Sans14px

Contrast Ratio

2.55:1

7 issues

Reading Comfort

~46 CPL

Optimal (45–75)

24px

14px

Minor Second

Scale

⚠️ 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: ~46 chars/line (ideal 45–75 CPL).

✅ Easy to read: Flesch score 73/100 — accessible to general audiences.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.5:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

Buy on MyFontsFlesch 73

Color Palette

13 unique colors

Light

#ffffff

Background· 41.599999999999994%

#0a2b44

Accent· 7.9%

#e37674

Accent· 7.3%

#ec1a23

Primary· 7.2%

#e7a784

Accent· 6.9%

#5f96a4

Secondary· 5.7%

#59677b

Secondary· 5.4%

#4f2829

Secondary· 4.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)browser.sentry-cdn.com(3)googletagmanager.com(2)gstatic.com(1)mc.yandex.ru(1)

Website Identity

Stervell

Event

info@redkassa.ru

+74956659999

redkassa.ru/events/bilety_na_concert_stervell_grafit

16 years old

Location detected: 🇷🇺 Russiavia phone

REGRU-RUru

Sponsored

Last analyzed: 20 May 2026 at 01:06

Historical Analysis & Change Tracking