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math.ru

https://math.ru· First analyzed 24 May 2026· Updated 24 May 2026
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math.ru
Desktop screenshot of math.ru
Mobile screenshot of math.ru
Mobile

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Hosting Provider

ISP-company COMPLAT

IP Address

185.30.228.135

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS24663

Server

Nginx

Nameservers

ns1.yandexcloud.net.ns2.yandexcloud.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
433 ms10%
Speed Index
563 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
127 KB
18 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
ISP-company COMPLAT

Technology Stack

1 Technologies Detected

Web Servers

1
Nginx

SEO Analysis

D43/100
11
11
2
Meta Tags5/15
Content10/12
Headings6/8
Technical4/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
M
math.rumath.ru

Math.ru

math.ru

Title Length7 chars

Recommended: 50-60 chars (~44px / 580px)

Description Length7 chars

Recommended: 120-160 chars

Issues (2)

  • • Most images missing alt text (23/24) — critical for accessibility and SEO
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

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Local SEO

Local Search Readiness

0/100
Poor
15 2

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

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AI & LLM Readiness

F39/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
6/25

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
Text ratio:25%
Words:300
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary65w
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.
D
56/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
9/15
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.
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.
63/100
A+
16 mg
CO₂e / view
126.8 KB
Page Weight
95%
Cleaner Than
New Visitor
18 mg
vs
Returning (cached)
9 mg
Annual (10K/mo)
1.9 kg
Emission Segments
Data Center
4 mg
Network
4 mg
Device
8 mg
Resource Breakdown
JavaScript
86.0 KB
Images
10.4 KB
CSS
26.3 KB
HTML
4.0 KB
Green Hosting Not Verified
ISP-company COMPLAT
2 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

31.03.2026

Valid Until

29.06.2026

Subject Alternative Names (20)

2016.edu.olimpiada.ruart.mosolymp.rubiocpm.ruedu.olimpiada.ruedx.edu.olimpiada.ruforum.edu.olimpiada.ruforum.kursitet.ruinforum.kursitet.ru+12 more

SHA-256 Fingerprint

58:9E:2C:6B:56:81:D7:14:F1:FE:D8:79:09:8F:9C:3A:18:98:5A:26...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Sun, 24 May 2026 14:08:27 GMT
etag
W/"261c-5df452644f832"
last-modified
Wed, 18 May 2022 08:36:11 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

marple.mccme.ru

Domain Information

math.ru

Domain Age
26y 5m

Created

15.12.1999

Expires

31.12.2026

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.
F
27/100
Not Mobile Friendly
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.
5 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Arial

WCAG Partial
60/100
Readability
/30
13/30

12px · LH --

Hierarchy
/20
11/20

1.33x ratio · ✓ H1→H6

WCAG
/25
16/25

4:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Arial

Sans16px

Body Font

Arial

Sans12px

Contrast Ratio

4:1

1 issue

Reading Comfort

~52 CPL

Optimal (45–75)
16px
h1
12px
p

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

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 4.0:1).

✅ 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.

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

Color Palette

5 unique colors
Light
#e6e6e6
Other· 53.79999999999999%
#fcf8f5
Primary· 18.700000000000003%
#7f86ae
Secondary· 15.2%
#a0aec8
Secondary· 6.7%
#48619e
Secondary· 5.6%

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Scripts & Styles

2 Resources

1
Scripts
1
Styles
1
Async
0
Defer

Top Script Sources

mc.yandex.ru(1)

Website Identity

math.ru

26 years old
Location detected: 🇷🇺 Russiavia tld
RU-CENTER-RU

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Last analyzed: 24 May 2026 at 14:08

Historical Analysis & Change Tracking