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a1.by

https://a1.by· First analyzed 21 May 2026· Updated 21 May 2026
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a1.by
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Mobile screenshot of a1.by
Mobile

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Hosting Provider

FE VELCOM

IP Address

37.17.95.86

Site Location

🇧🇾 Минск, Belarusvia schema_nap

Server Location

🇧🇾 Minsk, Belarus

ASN

AS42772

Server

Nginx

Nameservers

ns4.a1.by.ns2.a1.by.ns1.a1.by.ns3.a1.by.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
884 KB
152 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
FE VELCOM

Progressive Web App

Web Manifest

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Matomo

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

Security

1
reCAPTCHA

SEO Analysis

C63/100
20
5
2
Meta Tags13/15
Content3/12
Headings3/8
Technical19/25
E-E-A-T2/7
Images7/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
A
a1.bya1.by

A1 - провайдер телеком-, ИКТ- и контент-услуг

A1 (Унитарное предприятие по оказанию услуг «А1») – провайдер телекоммуникационных, ИКТ- и контент-услуг в Беларуси.

Title Length45 chars

Recommended: 50-60 chars (~274px / 580px)

Description Length117 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (7 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

441 URLs

robots.txt

12 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

23/100
Needs Work
6 14

Sponsored

AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
3/25
Citation
2/25

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:0%
Words:821
Token eff.:Optimal

Structured Data

1 JSON-LD
Organization×1.1Product(min)microdata

Citation Readiness

Opening Summary
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 (12)
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.
C
63/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
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
15/15
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
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.
2 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.
60/100
B
109 mg
CO₂e / view
884.4 KB
Page Weight
80%
Cleaner Than
New Visitor
125 mg
vs
Returning (cached)
63 mg
Annual (10K/mo)
13.1 kg
Emission Segments
Data Center
24 mg
Network
26 mg
Device
59 mg
Resource Breakdown
JavaScript
350.5 KB
Images
12.0 KB
CSS
41.9 KB
Fonts
259.6 KB
HTML
215.1 KB
Other
5.3 KB
Green Hosting Not Verified
FE VELCOM
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

306d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

20.02.2026

Valid Until

24.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.a1.bya1.by

SHA-256 Fingerprint

E4:D1:1F:39:D1:BA:49:22:44:14:29:41:C4:FA:04:E4:C7:56:FC:EC...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

connection
keep-alive
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=utf-8
date
Thu, 21 May 2026 10:53:15 GMT
rquid
5507e6c0-cd8d-43df-8916-0ff155f7bb08
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mail02.a1.by
mail01.a1.by

Domain Information

a1.by

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.
B
72/100
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

A1Sans-Bold + A1Sans-Regular

WCAG Partial
64/100
Readability
/30
23/30

14px · LH 1.43

Hierarchy
/20
8/20
WCAG
/25
17/25

1:1 min contrast

Performance
/25
16/25

2 fonts · 7 req

Heading Font

A1Sans-Bold

Sans

Body Font

A1Sans-Regular

Sans14px

Contrast Ratio

1:1

14 issues

Reading Comfort

~49 CPL

Optimal (45–75)
16px
h2
14px
p

⚠️ 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: ~49 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFontsFlesch 61

Color Palette

7 unique colors
12.63:1 AAA Dark
#333333
Other· 54.599999999999994%
#ffffff
Background· 21.700000000000003%
#170100
Primary· 11.2%
#291918
Secondary· 3.5%
#4e2b2a
Secondary· 0.6%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3
Matomo (Piwik)Mid-Market
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

6 Resources

4
Scripts
2
Styles
1
Async
1
Defer

Top Script Sources

online.a1.by(2)mtm.a1.by(1)a1.by(1)

Website Identity

A1

A1

Organization
+375-44-100

Минск

Минск

BY

Location detected: 🇧🇾 Belarus, Минскvia schema_nap
ru

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Last analyzed: 21 May 2026 at 10:53

Historical Analysis & Change Tracking