StackOptic
Back to Search
bts.aero favicon

bts.aero

https://bts.aero· First analyzed 14 May 2026· Updated 14 May 2026
Export
bts.aero
Desktop screenshot of bts.aero
Mobile screenshot of bts.aero
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.72.69

Site Location

🇸🇰 Slovakiavia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

suzanne.ns.cloudflare.com.abdullah.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
499 ms10%
Speed Index
649 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
834 KB
55 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

CDN

1
Cloudflare

SEO Analysis

C63/100
17
8
2
Meta Tags14/15
Content10/12
Headings3/8
Technical17/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
B
bts.aerobts.aero

Letisko Bratislava (BTS) - oficiálna stránka

Letisko Bratislava - Cestujte s nami! Získajte všetky potrebné informácie o príletoch a odletoch, parkovaní, destináciach a aktuálnych novinkách.

Title Length44 chars

Recommended: 50-60 chars (~259px / 580px)

Description Length145 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (26/34) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

3 rules

Sitemap reference found

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.

Sponsored

AI & LLM Readiness

F34/100
Bot Access
20/25
Machine Read.
2/25
Schema Data
0/25
Citation
12/25

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
nav
Text ratio:5%
Words:3,378
Token eff.:Poor Structure
Sections/1K:0.3
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 20w
Canonical URL
Open Graph2/3
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.
C
64/100
7
Passed
4
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
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.
61/100
B
84 mg
CO₂e / view
833.6 KB
Page Weight
80%
Cleaner Than
New Visitor
96 mg
vs
Returning (cached)
48 mg
Annual (10K/mo)
10.1 kg
Emission Segments
Data Center
4 mg
Network
25 mg
Device
55 mg
Resource Breakdown
JavaScript
85.0 KB
Images
485.4 KB
CSS
241.3 KB
Fonts
1.1 KB
HTML
20.4 KB
Other
320 B
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

26%Critical
Interactive

HTTPS

WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

25.04.2026

Valid Until

24.07.2026

Subject Alternative Names (1)

www.bts.aero

SHA-256 Fingerprint

D7:BC:13:A0:34:7C:34:EB:6D:B7:03:66:94:4B:59:FF:F8:4E:A5:B7...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9fbada6e4be83d0b-CDG
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Thu, 14 May 2026 15:14:33 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

50

SPF
DKIM
DMARC

MX Records (1)

bts-aero.mail.protection.outlook.com

Domain Information

bts.aero

Domain Age
13y 2m

Created

07.03.2013

Expires

07.03.2027

Last Updated

21.04.2026

Registrar

Secura GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Data Protection Officer mentioned

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.
B
75/100
Mobile Friendly13 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
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

arial + -apple-system

WCAG Partial
57/100
Readability
/30
20/30

14px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
15/25

1:1 min contrast

Performance
/25
14/25

System fonts

Heading Font

arial

Sans

Body Font

-apple-system

Sans14px

Contrast Ratio

1:1

13 issues

Reading Comfort

~45 CPL

Optimal (45–75)
24px
h2
22px
h3
14px
p

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

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

GGoogle FontsFlesch 0

Color Palette

9 unique colors
8.91:1 AAA Light
#ffffff
Background· 42.9%
#4f4849
Other· 8.2%
#114781
Primary· 15.8%
#fff4b9
Accent· 7.3%
#b8a28f
Secondary· 5.9%
#eee7cc
Secondary· 1.6%

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

8 Resources

6
Scripts
2
Styles
3
Async
1
Defer

Top Script Sources

googletagmanager.com(3)analytics.netropolis.sk(1)widgets.kiwi.com(1)local(1)

Website Identity

bts.aero

info@bts.aero
+421233033353
13 years old
Location detected: 🇸🇰 Slovakiavia phone
Secura GmbH📧 Microsoft 365sk

Sponsored

Last analyzed: 14 May 2026 at 15:14

Historical Analysis & Change Tracking