StackOptic
Back to Search
gadgetbridge.org favicon

gadgetbridge.org

https://gadgetbridge.org· First analyzed 21 May 2026· Updated 21 May 2026
Export
gadgetbridge.org
Desktop screenshot of gadgetbridge.org
Mobile screenshot of gadgetbridge.org
Mobile

Sponsored

Hosting Provider

IN-BERLIN

IP Address

217.197.84.141

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Berlin, Germany

ASN

AS29670

Server

git-pages (git-pages)

Nameservers

ns1114.ui-dns.org.ns1081.ui-dns.biz.ns1114.ui-dns.com.ns1097.ui-dns.de.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
824 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
531 KB
17 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
IN-BERLIN

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

D59/100
17
8
1
Meta Tags5/15
Content10/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images1/7
Links2/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
G
gadgetbridge.orggadgetbridge.org

Gadgetbridge

A free and open source Android application for bluetooth devices.

Title Length12 chars

Recommended: 50-60 chars (~75px / 580px)

Description Length65 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (4/6) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

282 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

3/100
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

D42/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
9/25

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
navheader/footer
Text ratio:4%
Words:586
Token eff.:Optimal
Sections/1K:1.7
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary458w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
A+
90/100
16
Passed
0
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
57/100
A
66 mg
CO₂e / view
530.7 KB
Page Weight
80%
Cleaner Than
New Visitor
75 mg
vs
Returning (cached)
38 mg
Annual (10K/mo)
7.9 kg
Emission Segments
Data Center
15 mg
Network
16 mg
Device
35 mg
Resource Breakdown
JavaScript
47.7 KB
Images
76.0 KB
CSS
114.2 KB
HTML
17.7 KB
Other
275.2 KB
Green Hosting Not Verified
IN-BERLIN
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

40d

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+H3

Valid From

02.04.2026

Valid Until

01.07.2026

Subject Alternative Names (1)

gadgetbridge.org

SHA-256 Fingerprint

62:D7:83:5E:20:05:46:8E:C4:83:6B:F7:75:A3:DE:2F:6C:9E:1F:5C...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
alt-svc
h3=":443"; ma=2592000,h3=":443"; ma=2592000
cache-control
🟡 60s(max-age=60, stale-while-revalidate=3600)
content-encoding
zstd
content-length
17786
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx01.ionos.it
mx00.ionos.it

Domain Information

gadgetbridge.org

Domain Age
9y 5m

Created

22.12.2016

Expires

22.12.2026

Last Updated

05.02.2026

Registrar

IONOS SE

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.
C
63/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Anuphan

WCAG AA
85/100
Readability
/30
24/30

18px · LH 1.60

Hierarchy
/20
18/20

2x ratio · ✓ H1→H6

WCAG
/25
23/25

5.34:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Anuphan

Sans35px

Body Font

Anuphan

Sans18px

Contrast Ratio

5.34:1

WCAG AA (≥4.5:1)

Reading Comfort

~39 CPL

Narrow lines
35px
h1
28px
h2
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.3:1).

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

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

Buy on MyFontsFluid Type (rem)Flesch 0

Color Palette

5 unique colors
Light
#f9f9f9
Background· 73.90000000000003%
#cb1717
Primary· 12.4%
#7c2d35
Secondary· 5%
#dcfbde
Accent· 1.3%

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

gadgetbridge.org(1)assets(1)

Website Identity

gadgetbridge.org

9 years old
Location detected: 🇩🇪 Germanyvia ip
IONOS SEen

Social Profiles

GitHub

Sponsored

Last analyzed: 21 May 2026 at 22:01

Historical Analysis & Change Tracking