hdb.com

https://hdb.com· First analyzed 14 May 2026· Updated 14 May 2026

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hdb.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

120.27.224.23

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Hangzhou, China

ASN

AS37963

Organization

Alibaba.com LLC

Performance

Core Web Vitals

Weight

First Contentful Paint

20.4 s10%

Speed Index

26.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.3 MB

121 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

5 Technologies Detected

Libraries

Frameworks

UI Components

CSS Frameworks

SEO Analysis

D48/100

Meta Tags7/15

Content8/12

Headings3/8

Technical18/25

E-E-A-T0/7

Images1/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

hdb.comhdb.com

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Title Length26 chars

Recommended: 50-60 chars (~161px / 580px)

Description Length72 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (74/108) — critical for accessibility and SEO

14 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

36,946 URLs

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100

Poor

3 12 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.

8/25

Schema Data

0/25

Citation

6/25

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

def. lists

Text ratio:4%

Words:404

Token eff.:Optimal

Sections/1K:44.6

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 1.1w

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...

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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.

60/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

7/20

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

9/15

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

4 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.

15/100

291 mg

CO₂e / view

2.3 MB

Page Weight

50%

Cleaner Than

New Visitor

333 mg

Returning (cached)

167 mg

Annual (10K/mo)

35.0 kg

Emission Segments

Data Center

65 mg

Network

70 mg

Device

156 mg

Resource Breakdown

Images

2.3 MB

HTML

15.6 KB

Green Hosting Not Verified

Alibaba Cloud

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

66%Fair

Interactive

HTTPS

No WAF

92d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

17.07.2025

Valid Until

14.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.hudongba.comhudongba.com

SHA-256 Fingerprint

92:BC:4D:23:A3:E1:D0:EB:37:99:46:4B:4E:8C:78:A8:B1:78:BD:76...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors *.hudongba.com *.hdb.com *.qq.com

content-type

text/html;charset=UTF-8

date

Thu, 14 May 2026 15:48:19 GMT

origin-agent-cluster

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

hdb.com

Domain Age

29y 10m

Created

25.07.1996

Expires

24.07.2032

Last Updated

19.06.2023

Registrar

eName Technology 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.

53/100

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,maximum-scale=1,user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Verdana

WCAG Partial

44/100

Readability

/30

9/30

13px · LH 1.77

Hierarchy

/20

7/20

WCAG

/25

14/25

2.13:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Verdana

Sans

Body Font

Verdana

Sans13px

Contrast Ratio

2.13:1

23 issues

Reading Comfort

~183 CPL

Too wide

26px

15px

13px

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

❌ Very long lines: ~182 chars/line causes eye strain. Add max-width constraint.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 2.1:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

9 unique colors

Light

#f8f8f8

Background· 40.400000000000006%

#0849ba

Primary· 24.5%

#b08b72

Secondary· 7.9%

#afcfd1

Secondary· 7.4%

#0965cb

Accent· 4.6%

#393590

Secondary· 3%

#fbe2ab

Accent· 1.9%

#386aa9

Secondary· 1.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js-uc.hudongba.cn(5)api.hudongba.com(1)static.chuangkit.com(1)img-uc.hudongba.cn(1)

Website Identity

hdb.com

29 years old

Location detected: 🇨🇳 Chinavia ip

eName Technology Co., Ltd.en

Sponsored

Last analyzed: 14 May 2026 at 15:49

Historical Analysis & Change Tracking