astronomer.ru

https://astronomer.ru· First analyzed 03 Jun 2026· Updated 03 Jun 2026

Export

astronomer.ru

Mobile

Sponsored

Hosting Provider

.masterhost

IP Address

90.156.201.62

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS25532

Server

Apache

Nameservers

ns.masterhost.ru.ns1.masterhost.ru.ns2.masterhost.ru.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.3 MB

47 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

.masterhost

Technology Stack

4 Technologies Detected

Libraries

CSS Frameworks

Analytics

Web Servers

SEO Analysis

D51/100

Meta Tags12/15

Content12/12

Headings3/8

Technical6/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

astronomer.ruastronomer.ru

Главная - Астрономия и Телескопостроение

Астрономия и Телескопостроение: сайт поддержки инициативных астрономических проектов

Title Length40 chars

Recommended: 50-60 chars (~248px / 580px)

Description Length84 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (15/27) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

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Local SEO

Local Search Readiness

3/100

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.

9/25

Schema Data

0/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

def. lists

Text ratio:15%

Words:527

Token eff.:Optimal

Sections/1K:20.9

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 2.5w

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...

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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.

59/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

10/15

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.

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.

32/100

163 mg

CO₂e / view

1.3 MB

Page Weight

70%

Cleaner Than

New Visitor

187 mg

Returning (cached)

93 mg

Annual (10K/mo)

19.6 kg

Emission Segments

Data Center

37 mg

Network

39 mg

Device

88 mg

Resource Breakdown

JavaScript

36.1 KB

Images

971.1 KB

CSS

307.3 KB

HTML

5.8 KB

Green Hosting Not Verified

.masterhost

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

254d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.01.2026

Valid Until

12.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.astronomer.ruastronomer.ru

SHA-256 Fingerprint

75:5A:D3:89:58:D0:3A:94:51:86:08:15:75:03:E8:58:AA:43:A3:6F...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Wed, 03 Jun 2026 08:32:50 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx4.masterhost.ru

Domain Information

astronomer.ru

Domain Age

23y 11m

Created

19.06.2002

Expires

19.06.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

33/100

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.

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Verdana

WCAG Partial

55/100

Readability

/30

19/30

14px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

14/25

2.19:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Verdana

Sans

Body Font

Verdana

Sans14px

Contrast Ratio

2.19:1

10 issues

Reading Comfort

~61 CPL

Optimal (45–75)

20px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~61 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 2.2:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFonts

Color Palette

12 unique colors

6.07:1 AA Light

#ffffff

Text· 9.7%

#5c636d

Secondary· 5.2%

#040507

Primary· 19.299999999999997%

#212636

Secondary· 17%

#313c58

Secondary· 7.8%

#3f4f6c

Secondary· 6.8%

#8995a0

Secondary· 6.7%

#eceef0

Secondary· 3.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(4)ssl.google-analytics.com(1)widgets.twimg.com(1)

Website Identity

astronomer.ru

23 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RU

Social Profiles

X (Twitter)

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Last analyzed: 03 Jun 2026 at 08:33

Historical Analysis & Change Tracking