onsen.io

https://onsen.io· First analyzed 10 May 2026· Updated 10 May 2026

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onsen.io

Mobile

Sponsored

Hosting Provider

Proinity

IP Address

185.172.148.132

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS44239

Organization

Proinity

Server

keycdn

CDN

Nameservers

lara.ns.cloudflare.com.cash.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

555 ms10%

Speed Index

722 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

754 KB

84 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Proinity

CDN

Technology Stack

11 Technologies Detected

Analytics

Libraries

Frameworks

CSS Frameworks

Icon Libraries

Fonts

Adobe Fonts (Typekit)

Tag Managers

Google Tag Manager

CDN

KeyCDN

SEO Analysis

D59/100

Meta Tags8/15

Content12/12

Headings5/8

Technical16/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile1/4

Indexability3/3

onsen.ioonsen.io

Onsen UI 2: Beautiful HTML5 Hybrid Mobile App Framework and Tools -...

Make beautiful hybrid mobile apps using HTML5, CSS and JavaScript. Works with or without any framework including Angular, Meteor, React and Vue. iOS and Andr...

Title truncated. Description truncated.

Title Length76 chars

Recommended: 50-60 chars (~468px / 580px)

Description Length161 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (76 chars, ~468px). Will be truncated in search results.
• Most images missing alt text (14/14) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

416 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

6/100

Poor

1 15 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

11/25

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

code blocksnav

Text ratio:12%

Words:661

Token eff.:Optimal

Sections/1K:1.5

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary94w

Descriptive Headingsavg 4w

Canonical URL

Open Graph2/3

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.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

13/20

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

6/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 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.

44/100

93 mg

CO₂e / view

753.5 KB

Page Weight

80%

Cleaner Than

New Visitor

107 mg

Returning (cached)

53 mg

Annual (10K/mo)

11.2 kg

Emission Segments

Data Center

21 mg

Network

22 mg

Device

50 mg

Resource Breakdown

JavaScript

170.9 KB

Images

346.7 KB

CSS

228.7 KB

HTML

7.3 KB

Green Hosting Not Verified

Proinity

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

74d

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

25.04.2026

Valid Until

24.07.2026

Subject Alternative Names (1)

onsen.io

SHA-256 Fingerprint

28:FB:19:1A:93:AC:63:0E:09:CC:76:E4:E2:31:0F:9C:40:BF:6B:A8...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 2 Hours(max-age=7200, no-transform, public)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sun, 10 May 2026 20:59:38 GMT

etag

W/"e06145da258432048457c0c50a14842c"

last-modified

Thu, 01 Aug 2024 06:58:26 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.onsen.io

Domain Information

onsen.io

Domain Age

11y 10m

Created

10.07.2014

Expires

10.07.2026

Last Updated

14.06.2025

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

62/100

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=1.0, minimum-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial

66/100

Readability

/30

22/30

15px · LH 1.60

Hierarchy

/20

9/20

1.6x ratio

WCAG

/25

16/25

3.69:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans24px

Body Font

Helvetica Neue

Sans15px

Contrast Ratio

3.69:1

33 issues

Reading Comfort

~38 CPL

Narrow lines

24px

28px

20px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Partial contrast: 33 elements below WCAG AA threshold (min 3.7:1).

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

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

AAdobe FontsFlesch 55

Color Palette

6 unique colors

Light

#ffffff

Background· 21%

#f04029

Primary· 52.400000000000006%

#f02c29

Accent· 10.4%

#f1573b

Accent· 8.3%

#d5bfbd

Secondary· 4.6%

#69251f

Accent· 3.3%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

HotjarMid-Market

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)google-analytics.com(2)use.typekit.net(1)static.hotjar.com(1)script.hotjar.com(1)

Website Identity

onsen.io

11 years old

Location detected: 🇩🇪 Germanyvia ip

GMO Internet Group, Inc. d/b/a Onamae.comen

Social Profiles

GitHub

Sponsored

Last analyzed: 10 May 2026 at 20:59

Historical Analysis & Change Tracking