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fantlab.ru

https://fantlab.ru· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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fantlab.ru
Desktop screenshot of fantlab.ru
Mobile screenshot of fantlab.ru
Mobile

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Hosting Provider

JSC IOT

IP Address

176.123.175.233

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS29182

Organization

JSC IOT

Server

Nginx

Nameservers

ns1.nameself.com.ns2.nameself.com.

Performance

92

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.9 MB
168 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
JSC IOT

Technology Stack

7 Technologies Detected

UI Components

2
LightboxFancybox

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv1.11.0

Icon Libraries

1
Font Awesome

Web Servers

1
Nginxv1.18.0

SEO Analysis

D56/100
16
8
2
Meta Tags9/15
Content12/12
Headings0/8
Technical17/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
F
fantlab.rufantlab.ru

Лаборатория Фантастики

На этом сайте трудами нескольких сотен человек собирается информация о фантастике, фэнтези и обо всём, что с ними связано.

Title Length22 chars

Recommended: 50-60 chars (~136px / 580px)

Description Length122 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (57/102) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

4 rules

Allows all crawlers

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

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

Sponsored

AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
0/25
Citation
13/25

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:15%
Words:3,675
Token eff.:Poor Structure

Structured Data

Microdata

Citation Readiness

Opening Summary67w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
D
45/100
8
Passed
3
Critical
3
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
12/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
3/15
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.
20/100
F
371 mg
CO₂e / view
2.9 MB
Page Weight
30%
Cleaner Than
New Visitor
424 mg
vs
Returning (cached)
212 mg
Annual (10K/mo)
44.5 kg
Emission Segments
Data Center
83 mg
Network
89 mg
Device
199 mg
Resource Breakdown
JavaScript
523.0 KB
Images
1.4 MB
CSS
978.9 KB
HTML
28.5 KB
Green Hosting Not Verified
JSC IOT
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

37d

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/1.1

Valid From

07.03.2026

Valid Until

05.06.2026

Subject Alternative Names (14)

api.fantlab.rucreator.fantlab.rudata.fantlab.rudev1.fantlab.rudev2.fantlab.rudev3.fantlab.rudev4.fantlab.rudev5.fantlab.ru+6 more

SHA-256 Fingerprint

0F:4E:5D:A1:AB:98:C8:1F:DA:0F:DF:51:BA:74:8D:87:4E:CD:82:52...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(max-age=0, no-cache)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-length
28922
content-type
text/html;charset=UTF-8
date
Wed, 29 Apr 2026 01:32:24 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mail.fantlab.ru

Domain Information

fantlab.ru

Domain Age
20y 5m

Created

13.11.2005

Expires

13.11.2026

Registrar

REGTIME-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.
D
58/100
Mobile Friendly6 breakpoints
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=1.0
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Verdana

WCAG Partial
52/100
Readability
/30
16/30

11px · LH 1.40

Hierarchy
/20
7/20
WCAG
/25
16/25

2.61:1 min contrast

Performance
/25
13/25

1 font · 1 req

Heading Font

Verdana

Body Font

Verdana

Sans11px

Contrast Ratio

2.61:1

23 issues

Reading Comfort

~53 CPL

Optimal (45–75)
11px
p

❌ Critical: 11px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~53 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 2.6:1).

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

Buy on MyFontsFlesch 44

Color Palette

8 unique colors
Light
#ffffff
Background· 65%
#0e252f
Primary· 5.5%
#728ca8
Secondary· 4.6%
#6e5257
Secondary· 3.8%
#a8abbe
Border· 3.1%
#cabbb5
Secondary· 2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
2
Async
0
Defer

Top Script Sources

local(17)mc.yandex.ru(1)gstatic.com(1)google.com(1)

Website Identity

fantlab.ru

20 years old
Location detected: 🇷🇺 Russiavia tld
REGTIME-RUru

Sponsored

Last analyzed: 29 Apr 2026 at 01:32

Historical Analysis & Change Tracking