nppstels.ru

https://nppstels.ru· First analyzed 21 May 2026· Updated 21 May 2026

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nppstels.ru

Mobile

Sponsored

Hosting Provider

CITYTELECOM1

IP Address

78.110.50.106

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS12616

Server

Apache

Nameservers

ns1.1gb.ru.ns2.1gb.ru.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.1 s10%

Speed Index

2.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

670 KB

72 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

CITYTELECOM1

Technology Stack

4 Technologies Detected

Libraries

CSS Frameworks

Web Servers

Languages

SEO Analysis

D53/100

Meta Tags7/15

Content10/12

Headings3/8

Technical15/25

E-E-A-T3/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

nppstels.runppstels.ru

НПП «Стелс»

НПП «Стелс». Разработка и производство систем мониторинга стационарных и мобильных объектов. Программное обеспечение и оборудование для пультовой охраны «Мир...

Description truncated.

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length273 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (35/42) — critical for accessibility and SEO
• 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

2 URLs

2 sub-sitemaps

robots.txt

32 rules

Sitemap reference found

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

D47/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

15/25

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:9%

Words:529

Token eff.:Optimal

Sections/1K:32.1

Structured Data

No Schema

Citation Readiness

Opening Summary21w

Descriptive Headingsavg 3.8w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

39/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

7/20

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

14/15

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...

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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.

33/100

83 mg

CO₂e / view

670.1 KB

Page Weight

80%

Cleaner Than

New Visitor

95 mg

Returning (cached)

47 mg

Annual (10K/mo)

9.9 kg

Emission Segments

Data Center

19 mg

Network

20 mg

Device

45 mg

Resource Breakdown

JavaScript

476.0 KB

Images

41.3 KB

CSS

108.2 KB

HTML

44.7 KB

Green Hosting Not Verified

CITYTELECOM1

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

44d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

06.04.2026

Valid Until

05.07.2026

Subject Alternative Names (2)

nppstels.ruwww.nppstels.ru

SHA-256 Fingerprint

24:D5:D4:8F:9A:04:CF:09:1B:B2:E6:BA:7C:16:8C:94:65:3C:20:DF...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-length

45422

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 21:05:01 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

p3p

policyref="/bitrix/p3p.xml", CP="NON DSP COR CUR ADM DEV PSA...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx2.hosting.reg.ru

mx1.hosting.reg.ru

Domain Information

nppstels.ru

Domain Age

19y 9m

Created

01.08.2006

Expires

01.08.2026

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.

32/100

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.

5 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Arial

WCAG Partial

47/100

Readability

/30

3/30

8px · LH 2.13

Hierarchy

/20

8/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Arial

Sans

Body Font

Arial

Sans8px

Contrast Ratio

1:1

10 issues

Reading Comfort

~248 CPL

Too wide

21px

16px

12px

8px

❌ Critical: 8px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide line spacing (2.12). 1.4–1.6 is optimal for body text.

❌ Very long lines: ~248 chars/line causes eye strain. Add max-width constraint.

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.0:1).

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

Flesch 31

Color Palette

8 unique colors

14.94:1 AAA Light

#ffffff

Background· 32.900000000000006%

#272727

Text· 18.8%

#094773

Primary· 5.8%

#63798b

Secondary· 4.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)bitrix.info(1)mc.yandex.ru(1)

Website Identity

nppstels.ru

19 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RUru

Social Profiles

YouTube

Sponsored

Last analyzed: 21 May 2026 at 21:05

Historical Analysis & Change Tracking