sources.ru

https://sources.ru· First analyzed 22 May 2026· Updated 22 May 2026

Export

sources.ru

Mobile

Sponsored

Hosting Provider

Autonomous Nonprofit Organisation "Russian Scientific-Research Institute Public Networks"

IP Address

212.193.62.231

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS201848

Organization

Autonomous Nonprofit Organisation "Russian Scientific-Research Institute Public Networks"

Server

Angie

Nameservers

ns2.simplecloud.ru.ns1.simplecloud.ru.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

533 ms10%

Speed Index

693 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

63 KB

14 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Autonomous Nonprofit Organisation "Russian Scientific-Research Institute Public Networks"

SEO Analysis

D42/100

Meta Tags5/15

Content10/12

Headings3/8

Technical6/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

sources.rusources.ru

Исходники.RU - Информационный сервер для программистов: исходники с...

Исходники

Title truncated.

Title Length81 chars

Recommended: 50-60 chars (~495px / 580px)

Description Length9 chars

Recommended: 120-160 chars

Issues (4)

• Title is too long (81 chars, ~495px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (3/5) — critical for accessibility and SEO

15 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

1 rules

Allows all crawlers

Local SEO

Local Search Readiness

2/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F31/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

3/25

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:14%

Words:333

Token eff.:Optimal

Sections/1K:6

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 2w

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.

44/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

4/20

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

1/15

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

5 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.

53/100

A+

8 mg

CO₂e / view

62.6 KB

Page Weight

95%

Cleaner Than

New Visitor

9 mg

Returning (cached)

4 mg

Annual (10K/mo)

924 g

Emission Segments

Data Center

2 mg

Network

2 mg

Device

4 mg

Resource Breakdown

JavaScript

43.3 KB

Images

11.7 KB

CSS

1.8 KB

HTML

5.8 KB

Green Hosting Not Verified

Autonomous Nonprofit Organisation "Russian Scientific-Research Institute Public Networks"

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

31%Critical

Interactive

HTTPS

No WAF

62d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

25.04.2026

Valid Until

24.07.2026

Subject Alternative Names (1)

sources.ru

SHA-256 Fingerprint

0C:6F:BA:C0:05:6C:FC:62:7C:04:36:CD:75:96:88:8B:A7:D9:4E:7C...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Fri, 22 May 2026 22:04:55 GMT

server

Angie

x-frame-options

ALLOW

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

sources.ru

Domain Age

26 years

Created

22.05.2000

Expires

31.05.2026

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.

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 AA

58/100

Readability

/30

13/30

12px · LH --

Hierarchy

/20

6/20

WCAG

/25

19/25

5.74:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Arial

Sans

Body Font

Arial

Sans12px

Contrast Ratio

5.74:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned

18px

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

⚠️ Hard to read: Flesch score 46/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.7:1).

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

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

Flesch 46

Color Palette

6 unique colors

4.2:1 AA Large Light

#ffffff

Background· 80.5%

#7d7a86

Other· 2.6%

#a9afb8

Primary· 4.4%

#c5cbd1

Secondary· 3.3%

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

top-fwz1.mail.ru(2)privacy-cs.mail.ru(1)

Website Identity

sources.ru

admin@sources.ru

26 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RU

Sponsored

Last analyzed: 22 May 2026 at 22:05

Historical Analysis & Change Tracking