ptc-asia.com

https://ptc-asia.com· First analyzed 15 May 2026· Updated 15 May 2026

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ptc-asia.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

139.196.253.85

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Shanghai, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Microsoft IIS

Nameservers

dns25.hichina.com.dns26.hichina.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

4.6 s10%

Speed Index

6.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

16.2 MB

121 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

8 Technologies Detected

Frameworks

Libraries

CSS Frameworks

Icon Libraries

Web Servers

SEO Analysis

F37/100

Meta Tags3/15

Content7/12

Headings3/8

Technical9/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

ptc-asia.comptc-asia.com

No Title Found

PTC动力传动展将于2025年10月28-31日在上海新国际博览中心开启。亚洲国际动力传动与控制技术展览会将展示智能制造的创新成果，联合打造横跨各领域的大工业平台。

Title Length0 chars

Recommended: 50-60 chars

Description Length91 chars

Recommended: 120-160 chars

Issues (3)

• Missing page title — critical for SEO rankings and SERP display
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (65/68) — critical for accessibility and SEO

14 issues found

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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

F25/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

1/25

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:4%

Words:176

Token eff.:Too Short

Sections/1K:28.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 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

15/20

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

Semantic Structure

8/20

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

3/15

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

5 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

2.05 g

CO₂e / view

16.2 MB

Page Weight

Cleaner Than

New Visitor

2.34 g

Returning (cached)

1.17 g

Annual (10K/mo)

245.7 kg

Emission Segments

Data Center

457 mg

Network

491 mg

Device

1.10 g

Resource Breakdown

JavaScript

153.9 KB

Images

15.4 MB

CSS

512.5 KB

HTML

12.5 KB

Other

77.7 KB

Green Hosting Not Verified

Alibaba Cloud

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

77d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

01.08.2025

Valid Until

31.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

ptc-asia.comwww.ptc-asia.com

SHA-256 Fingerprint

A4:E0:1E:7F:4F:04:7E:CF:F1:D8:2B:22:D8:E7:ED:A1:12:92:61:5D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-headers

Content-Type, Authorization, X-Requested-With

access-control-allow-methods

GET, POST, PUT, DELETE, OPTIONS

access-control-allow-origin

content-encoding

📦 Gzip(gzip)

content-length

12492

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

ptc-asia.com

Domain Age

24y 3m

Created

06.02.2002

Expires

06.02.2027

Last Updated

06.01.2026

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

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.

49/100

Not Mobile Friendly2 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, maximum-scale=1, user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Partial

59/100

Readability

/30

15/30

16px · LH 1.13

Hierarchy

/20

7/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

1:1

31 issues

Reading Comfort

~43 CPL

Narrow lines

30px

16px

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

⚠️ Tight line spacing (1.12). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 31 elements below WCAG AA threshold (min 1.0:1).

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

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

Color Palette

9 unique colors

Light

#dadfe9

Primary· 21.700000000000003%

#b4b9cb

Secondary· 19.3%

#9fa9c1

Secondary· 16.8%

#345a9c

Secondary· 12.299999999999999%

#008dd2

Accent· 10.8%

#bbcbdc

Secondary· 9.5%

#657aa2

Secondary· 3.5%

#5599c5

Secondary· 3.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static(6)node60.aizhantj.com(2)unpkg.com(2)s23.cnzz.com(2)webtrack.coolgua.net(1)

Website Identity

ptc-asia.com

24 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.

Social Profiles

Facebook X (Twitter)

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Last analyzed: 15 May 2026 at 08:38

Historical Analysis & Change Tracking