StackOptic
Back to Search
e-uchebnici.com favicon

e-uchebnici.com

https://e-uchebnici.com· First analyzed 12 May 2026· Updated 12 May 2026
Export
e-uchebnici.com
Desktop screenshot of e-uchebnici.com
Mobile screenshot of e-uchebnici.com
Mobile

Sponsored

Hosting Provider

AbilixSoft Ltd

IP Address

185.246.171.227

Site Location

🇧🇬 Bulgariavia ip

Server Location

🇧🇬 Varna, Bulgaria

ASN

AS202543

Server

Apache

Nameservers

backupdns2017.abilixsoft.eu.backupdns.abilixsoft.eu.BititehnikaW1.hp.abilixsoft.eu.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
79 KB
8 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
AbilixSoft Ltd

Technology Stack

2 Technologies Detected

Fonts

1
Google Fonts

Web Servers

1
Apache

SEO Analysis

F37/100
10
10
2
Meta Tags9/15
Content5/12
Headings3/8
Technical8/25
E-E-A-T0/7
Images0/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile2/4
Indexability3/3
E
e-uchebnici.come-uchebnici.com

Електронни учебници на Издателство Бит и Техника

No description available for this page.

Title Length48 chars

Recommended: 50-60 chars (~297px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

0 rules

Allows all crawlers

Local SEO

Local Search Readiness

2/100
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

F29/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
0/25
Citation
4/25

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:27%
Words:156
Token eff.:Too Short
Sections/1K:12.8

Structured Data

No Schema

Citation Readiness

Opening Summary27w
Descriptive Headingsavg 3w
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...
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
59/100
6
Passed
6
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
8/15
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.
3 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.
56/100
A+
10 mg
CO₂e / view
79.0 KB
Page Weight
95%
Cleaner Than
New Visitor
11 mg
vs
Returning (cached)
6 mg
Annual (10K/mo)
1.2 kg
Emission Segments
Data Center
2 mg
Network
2 mg
Device
5 mg
Resource Breakdown
JavaScript
65.6 KB
CSS
9.2 KB
Fonts
1.9 KB
HTML
2.3 KB
Green Hosting Not Verified
AbilixSoft Ltd
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

23.04.2026

Valid Until

22.07.2026

Subject Alternative Names (8)

admin.e-uchebnici.comadmin.euchebnici.come-uchebnici.comeuchebnici.comwebmail.e-uchebnici.comwebmail.euchebnici.comwww.e-uchebnici.comwww.euchebnici.com

SHA-256 Fingerprint

7F:10:4A:C0:75:54:0C:39:03:FE:EC:EE:75:3D:05:27:FA:14:EC:E6...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)
content-encoding
📦 Gzip(gzip)
content-length
2012
content-type
text/html; charset=UTF-8
date
Tue, 12 May 2026 01:09:32 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

30

SPF
DKIM
DMARC

Domain Information

e-uchebnici.com

Domain Age
9 years

Created

02.05.2017

Expires

02.05.2027

Last Updated

02.04.2026

Registrar

PDR Ltd. d/b/a PublicDomainRegistry.com

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.
F
34/100
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

Tahoma

WCAG AA
69/100
Readability
/30
14/30

14px · LH --

Hierarchy
/20
14/20

2x ratio

WCAG
/25
22/25

4.83:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Tahoma

Sans28px

Body Font

Tahoma

Sans14px

Contrast Ratio

4.83:1

WCAG AA (≥4.5:1)

Reading Comfort

~125 CPL

Too wide
28px
h1
28px
h3
14px
p
Minor Second
Scale

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

❌ Very long lines: ~125 chars/line causes eye strain. Add max-width constraint.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.8:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

GGoogle FontsBuy on MyFonts

Color Palette

6 unique colors
Light
#ffffff
Background· 55.3%
#296eb9
Primary· 13.9%
#bcc1ca
Secondary· 5.1%
#778caa
Secondary· 3.1%
#575b83
Secondary· 2.1%

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

Sponsored

Scripts & Styles

5 Resources

2
Scripts
3
Styles
0
Async
0
Defer

Top Script Sources

local(2)

Website Identity

e-uchebnici.com

kodove@bititechnika.com
9 years old
Location detected: 🇧🇬 Bulgariavia ip
PDR Ltd. d/b/a PublicDomainRegistry.com

Sponsored

Last analyzed: 12 May 2026 at 01:09

Historical Analysis & Change Tracking