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devline.tv

https://devline.tv· First analyzed 09 Sept 2026· Updated 09 Sept 2026
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devline.tv
Desktop screenshot of devline.tv
Mobile screenshot of devline.tv
Mobile

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Hosting Provider

Selectel

IP Address

185.31.166.8

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 Moscow, Russia

ASN

AS50340

Organization

Selectel

Server

Nginx

Performance

74

Core Web Vitals

Weight

First Contentful Paint
3.6 s10%
Speed Index
4.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
321 KB
18 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Selectel

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Nginxv1.22.1

SEO Analysis

D42/100
13
7
2
Meta Tags0/15
Content5/12
Headings8/8
Technical11/21
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
D
devline.tvdevline.tv

No Title Found

No description available for this page.

Title Length0 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing page title — critical for SEO rankings and SERP display
  • • Missing meta description — important for click-through rates in SERPs

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

12/100
Poor
4 11 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

F34/100
Bot Access
20/25
Machine Read.
9/25
Schema Data
0/25
Citation
5/25

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:6%
Words:103
Token eff.:Too Short
Sections/1K:29.1

Structured Data

No Schema

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 4w
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.
B
70/100
8
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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.
1 recommendation
  • •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.
67/100
A+
40 mg
CO₂e / view
320.5 KB
Page Weight
90%
Cleaner Than
New Visitor
45 mg
vs
Returning (cached)
23 mg
Annual (10K/mo)
4.8 kg
Emission Segments
Data Center
9 mg
Network
10 mg
Device
21 mg
Resource Breakdown
JavaScript
221.2 KB
Images
87.7 KB
CSS
9.5 KB
Fonts
1.1 KB
HTML
793 B
Other
336 B
Green Hosting Not Verified
Selectel
3 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

98d

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/1.1

Valid From

01.06.2026

Valid Until

17.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.devline.tvdevline.tv

SHA-256 Fingerprint

C2:28:2F:E8:87:BB:27:DD:49:0F:81:D6:6D:84:42:8C:2B:56:BC:D7...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Wed, 09 Sep 2026 13:52:44 GMT
etag
W/"6925a3ba-54c"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

ns1.ru.devline.tv

Domain Information

devline.tv

Domain Age
17y 7m

Created

19.01.2009

Expires

19.01.2027

Last Updated

13.01.2026

Registrar

Regional Network Information Center, JSC dba RU-CENTER

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
57/100
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,user-scalable=no
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Manrope + Montserrat

WCAG AA
84/100
Readability
/30
24/30

24px · LH 1.42

Hierarchy
/20
18/20

2.08x ratio · ✓ H1→H6

WCAG
/25
22/25

4.86:1 min contrast

Performance
/25
20/25

2 fonts · 1 req

Heading Font

Manrope

Sans50px

Body Font

Montserrat

Sans24px

Contrast Ratio

4.86:1

WCAG AA (≥4.5:1)

Reading Comfort

~42 CPL

Narrow lines
50px
h1
32px
h2
24px
h3
24px
p

✅ Excellent readability: 24px body text is ideal for all devices.

✅ Optimal line spacing: 1.42 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.9:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

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

GGoogle Fonts

Color Palette

5 unique colors
Light
#ffffff
Background· 89.5%
#c9d2c4
Primary· 3.2%
#4d683c
Secondary· 3%
#8ba679
Secondary· 2.6%

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Scripts & Styles

14 Resources

12
Scripts
2
Styles
0
Async
11
Defer

Top Script Sources

local(1)vendors-49d0a293.2f6c7e05.js(1)vendors-d2eb5610.2f6c7e05.js(1)vendors-e261a96e.2f6c7e05.js(1)vendors-a8f01948.2f6c7e05.js(1)

Website Identity

devline.tv

[email protected]
88002001666
17 years old
Location detected: 🇷🇺 Russiavia ip
Regional Network Information Center, JSC dba RU-CENTERen

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Last analyzed: 09 Sept 2026 at 13:52

Historical Analysis & Change Tracking