bk55.ru

https://bk55.ru· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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bk55.ru

Mobile

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

14/20

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

14/15

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

8/15

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

3 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.

26/100

226 mg

CO₂e / view

1.8 MB

Page Weight

60%

Cleaner Than

New Visitor

258 mg

Returning (cached)

129 mg

Annual (10K/mo)

27.1 kg

Emission Segments

Data Center

51 mg

Network

54 mg

Device

121 mg

Resource Breakdown

JavaScript

336.2 KB

Images

1.4 MB

CSS

30.7 KB

HTML

40.3 KB

Other

2.7 KB

Green Hosting Not Verified

Safe Value Limited

6 recommendations

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Security Score

36%Critical

Interactive

HTTPS

No WAF

69d

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

10.04.2026

Valid Until

09.07.2026

Subject Alternative Names (1)

bk55.ru

SHA-256 Fingerprint

47:F6:F6:FB:5E:31:41:CC:AA:4B:28:E9:D2:31:FE:AD:48:09:DA:0B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

content-encoding

📦 Gzip(gzip)

content-length

40936

content-type

text/html; charset=utf-8

date

Thu, 30 Apr 2026 20:55:09 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Yandex Mail

Score

SPF

DKIM

DMARC

MX Records (1)

mx.yandex.ru

Domain Information

bk55.ru

Domain Age

17y 10m

Created

22.06.2008

Expires

22.06.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

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.

39/100

Not 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Tahoma + Arial

WCAG Partial

63/100

Readability

/30

14/30

12px · LH 1.25

Hierarchy

/20

15/20

1x ratio · ✓ H1→H6

WCAG

/25

14/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Tahoma

Sans12px

Body Font

Arial

Sans12px

Contrast Ratio

1:1

9 issues

Reading Comfort

Dual Sans-Serif

left aligned

12px

Minor Second

Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.25). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Buy on MyFonts

Color Palette

12 unique colors

12.59:1 AAA Light

#ffffff

Background· 63.5%

#343333

Other· 4%

#0d1d26

Primary· 5.5%

#a9b8c4

Secondary· 5.2%

#d5dade

Border· 3.7%

#edf0f1

Secondary· 3.2%

#65789a

Secondary· 2.8%

#ab7a76

Secondary· 2.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

bk55.ru

redactor@bk55.ru

17 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RU📧 Yandex Mailru

bk55.ru

Последние Новости Омска и Омской области | БК55

Accessibility

Carbon Footprint

Mobile Compatibility

Color Palette

bk55.ru