oshwhub.com

https://oshwhub.com· First analyzed 20 May 2026· Updated 20 May 2026

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oshwhub.com

Mobile

Sponsored

Hosting Provider

Gangkou Jiaohuachang

IP Address

218.12.76.158

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Beijing, China

ASN

AS4837

Organization

Gangkou Jiaohuachang

Server

OpenResty

Performance

Core Web Vitals

Weight

First Contentful Paint

1.9 s10%

Speed Index

2.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

35.2 MB

199 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

Gangkou Jiaohuachang

Technology Stack

4 Technologies Detected

CSS Frameworks

Meta Frameworks

Web Servers

SEO Analysis

D55/100

Meta Tags7/15

Content3/12

Headings8/8

Technical18/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social1/5

Freshness0/4

Mobile1/4

Indexability3/3

oshwhub.comoshwhub.com

立创开源硬件平台 - 深圳创电优选科技有限公司

基于嘉立创EDA进行电路设计的硬件开源设计大本营,集嵌入式、电子模块、DIY设计、物联网、智能硬件、电子应用、电工电子等多种电路设计模块为一体的开源硬件平台

Title Length23 chars

Recommended: 50-60 chars (~142px / 580px)

Description Length78 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (3 words). Search engines need substantial content for ranking.

9 issues found

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Crawlability

Sitemap

Type: standard

211 URLs

robots.txt

3 rules

Sitemap reference found

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

F37/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

5/25

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:1%

Words:827

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph1/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

68/100

Passed

Critical

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

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

11/15

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.

2 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.

23/100

4.46 g

CO₂e / view

35.2 MB

Page Weight

Cleaner Than

New Visitor

5.10 g

Returning (cached)

2.55 g

Annual (10K/mo)

535.2 kg

Emission Segments

Data Center

996 mg

Network

1.07 g

Device

2.39 g

Resource Breakdown

JavaScript

753.7 KB

Images

33.5 MB

CSS

57.9 KB

HTML

133.6 KB

Other

812.9 KB

Green Hosting Not Verified

Gangkou Jiaohuachang

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

143d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

23.09.2025

Valid Until

10.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.oshwhub.comoshwhub.com

SHA-256 Fingerprint

5F:49:48:9B:8E:50:86:D5:3D:50:A0:38:6C:4C:B3:C1:33:D3:64:20...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

637

cache-control

🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

136476

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

oshwhub.com

Domain Age

7y 1m

Created

29.03.2019

Expires

29.03.2027

Last Updated

07.05.2026

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

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.

51/100

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.

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Microsoft YaHei

WCAG Partial

64/100

Readability

/30

18/30

16px · LH 4.13

Hierarchy

/20

7/20

1x ratio

WCAG

/25

17/25

1:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

Microsoft YaHei

Sans16px

Body Font

Microsoft YaHei

Sans16px

Contrast Ratio

1:1

6 issues

Reading Comfort

Single Font Family

left aligned

16px

36px

28px

16px

Minor Third

Scale

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Wide line spacing (4.12). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

Buy on MyFontsFlesch 51

Color Palette

8 unique colors

Light

#b1a5a1

Secondary· 7.7%

#f8f8fa

Background· 41.300000000000004%

#3f66f1

Primary· 24%

#337bfa

Primary· 8.2%

#c9d2d7

Border· 8.2%

#27459f

Accent· 4.4%

#6a88d1

Accent· 3.4%

#604aa6

Secondary· 2.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(19)hm.baidu.com(1)

Website Identity

oshwhub.com

7 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.zh-CN

Sponsored

Last analyzed: 20 May 2026 at 15:33

Historical Analysis & Change Tracking