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mttlab.com

https://mttlab.com· First analyzed 12 May 2026· Updated 12 May 2026
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mttlab.com
Desktop screenshot of mttlab.com
Mobile screenshot of mttlab.com
Mobile

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Hosting Provider

Alibaba Cloud
alibabacloud.com

IP Address

8.135.238.116

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Shenzhen, China

ASN

AS37963

Organization

Alibaba.com LLC

Server

Nginx

Nameservers

dns17.hichina.com.dns18.hichina.com.

Performance

80

Core Web Vitals

Weight

First Contentful Paint
2.2 s10%
Speed Index
2.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
17.5 MB
157 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Alibaba Cloud

Technology Stack

6 Technologies Detected

Libraries

2
jQueryv3.2.1
AOS

UI Components

1
Swiper

Other

1
AOS (Animate On Scroll)

Analytics

1
Microsoft Clarity

Web Servers

1
Nginx

SEO Analysis

D51/100
13
10
2
Meta Tags7/15
Content12/12
Headings3/8
Technical11/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
M
mttlab.commttlab.com

美信检测官网|专业第三方检测中心-CMA&CNAS资质

美信检测是一家具有国家CMA和CNAS认可资质的商业第三方实验室，专注为客户提供检测服务、技术咨询服务和解决方案服务，服务行业涉及电子制造、汽车电子、半导体、航空航天材料等领域。

Title Length27 chars

Recommended: 50-60 chars (~168px / 580px)

Description Length89 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (129/172) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

12/100
Poor
4 11 2

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

Sponsored

AI & LLM Readiness

F31/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
4/25

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
Text ratio:4%
Words:583
Token eff.:Optimal

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...
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.
D
57/100
8
Passed
7
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
4/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
5/15
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.
5 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
9/100
F
2.21 g
CO₂e / view
17.5 MB
Page Weight
5%
Cleaner Than
New Visitor
2.53 g
vs
Returning (cached)
1.26 g
Annual (10K/mo)
265.4 kg
Emission Segments
Data Center
494 mg
Network
531 mg
Device
1.19 g
Resource Breakdown
JavaScript
93.4 KB
Images
14.1 MB
CSS
472.1 KB
HTML
23.9 KB
Other
2.8 MB
Green Hosting Not Verified
Alibaba Cloud
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

43d

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+H3

Valid From

26.03.2026

Valid Until

24.06.2026

Subject Alternative Names (2)

mttlab.comwww.mttlab.com

SHA-256 Fingerprint

63:04:00:18:C7:38:07:3E:83:01:8C:D7:12:8B:1A:40:53:55:E7:D9...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
quic=":443"; h3=":443"; h3-29=":443"; h3-27=":443";h3-25=":4...
cache-control
🔴 No Cache(no-cache, private)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Tue, 12 May 2026 05:55:25 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mxbiz1.qq.com
mxbiz2.qq.com

Domain Information

mttlab.com

Domain Age
12y 11m

Created

07.06.2013

Expires

07.06.2033

Last Updated

19.08.2025

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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
61/100
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, viewport-fit=cover
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

HarmonyOS_Sans_SC_Medium + HarmonyOS_Sans_SC_Regular

WCAG AA
56/100
Readability
/30
20/30

16px · LH 1.88

Hierarchy
/20
5/20
WCAG
/25
15/25

4.74:1 min contrast

Performance
/25
16/25

2 fonts

Heading Font

HarmonyOS_Sans_SC_Medium

Sans

Body Font

HarmonyOS_Sans_SC_Regular

Sans16px

Contrast Ratio

4.74:1

WCAG AA (≥4.5:1)

Reading Comfort

~41 CPL

Narrow lines
48px
h2
16px
p

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

⚠️ Wide line spacing (1.88). 1.4–1.6 is optimal for body text.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

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

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFonts

Color Palette

9 unique colors
2.96:1 Fail Light
#dadbda
Other· 46.099999999999994%
#857b7b
Other· 4.9%
#70404a
Primary· 5.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Microsoft ClarityFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

20 Resources

15
Scripts
5
Styles
2
Async
0
Defer

Top Script Sources

local(7)plt.zoosnet.net(2)scripts.clarity.ms(1)material.weiling.cn(1)clarity.ms(1)

Website Identity

mttlab.com

marketing@mttlab.com
400-850-4050
12 years old
Location detected: 🇨🇳 Chinavia ip
Alibaba Cloud Computing (Beijing) Co., Ltd.

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Last analyzed: 12 May 2026 at 05:56

Historical Analysis & Change Tracking