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gostrf.com

https://gostrf.com· First analyzed 01 Jun 2026· Updated 01 Jun 2026
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gostrf.com
Desktop screenshot of gostrf.com
Mobile screenshot of gostrf.com
Mobile

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Hosting Provider

JSC Selectel

IP Address

91.206.15.232

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 St Petersburg, Russia

ASN

AS49505

Server

Nginx

Nameservers

dns2.bigrock.com.dns3.bigrock.com.dns4.bigrock.com.dns1.bigrock.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
495 ms10%
Speed Index
644 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
330 KB
42 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
JSC Selectel

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginxv1.20.2

Languages

1
PHPv8.2.20

SEO Analysis

D51/100
14
11
2
Meta Tags7/15
Content12/12
Headings6/8
Technical10/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
G
gostrf.comgostrf.com

ГОСТы, СНиП, РД, СанПиН, ППБ, инструкции и др.технормативы - 150000...

Бесплатная электронная библиотека гостов и нормативов, ГОСТ, ГОСТ Р, ГОСТ Р ИСО, СП, СНиП, СН, ВСН, РД, ВРД, СанПиН, МУК, ГН, ППБ, НПБ, ВППБ, ГЭСН, ФЕР, ТЕР,...

Title truncated. Description truncated.
Title Length185 chars

Recommended: 50-60 chars (~1125px / 580px)

Description Length220 chars

Recommended: 120-160 chars

Issues (2)

  • • Title is too long (185 chars, ~1125px). Will be truncated in search results.
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

67 rules

Sitemap reference found

Local SEO

Local Search Readiness

1/100
Poor
16 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.
7/25
Schema Data
0/25
Citation
7/25

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:4,216
Token eff.:Poor Structure

Structured Data

No Schema

Citation Readiness

Opening Summary86w
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 (11)
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.
C
63/100
8
Passed
5
Critical
1
Warnings
Images & Alt Text
15/20
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
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
11/15
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.
53/100
A
41 mg
CO₂e / view
330.1 KB
Page Weight
90%
Cleaner Than
New Visitor
47 mg
vs
Returning (cached)
23 mg
Annual (10K/mo)
4.9 kg
Emission Segments
Data Center
9 mg
Network
10 mg
Device
22 mg
Resource Breakdown
JavaScript
152.4 KB
Images
157.0 KB
CSS
971 B
HTML
19.1 KB
Other
698 B
Green Hosting Not Verified
JSC Selectel
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

50d

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

23.04.2026

Valid Until

22.07.2026

Subject Alternative Names (2)

gostrf.comwww.gostrf.com

SHA-256 Fingerprint

88:43:7D:27:89:0E:99:60:47:74:45:62:ED:11:10:3D:C9:A7:89:D7...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

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; charset=UTF-8
date
Mon, 01 Jun 2026 18:30:20 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

gostrf.com

Domain Age
12y 5m

Created

25.12.2013

Expires

25.12.2026

Last Updated

24.10.2025

Registrar

BigRock Solutions Ltd

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
43/100
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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG Partial
76/100
Readability
/30
22/30

16px · LH --

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
17/25

4.48:1 min contrast

Performance
/25
18/25

1 font · 1 req

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

4.48:1

10 issues

Reading Comfort

Single Font Family

left aligned
32px
h1
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 4.5:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFonts

Color Palette

10 unique colors
2.94:1 Fail Light
#ffffff
Background· 67.1%
#979790
Other· 3.1%
#1c375c
Primary· 5.9%
#728b9e
Secondary· 2.7%
#7d646d
Secondary· 2.6%
#bb9d9b
Secondary· 2.5%
#852b3f
Accent· 1.4%

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

6 Resources

5
Scripts
1
Styles
5
Async
0
Defer

Top Script Sources

acint.net(1)site.yandex.net(1)bitrix.info(1)yandex.ru(1)yastatic.net(1)

Website Identity

gostrf.com

12 years old
Location detected: 🇷🇺 Russiavia ip
BigRock Solutions Ltd

Sponsored

Last analyzed: 01 Jun 2026 at 18:30

Historical Analysis & Change Tracking