echemi.com

https://echemi.com· First analyzed 02 May 2026· Updated 02 May 2026

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echemi.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

163.181.131.236

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS24429

Organization

Alibaba.com LLC

Server

CloudFront

CDN

CloudFront

Performance

100

3 KB

6 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

AWS CloudFront

CDN

CloudFront

Technology Stack

1 Technologies Detected

CDN

Amazon CloudFront

SEO Analysis

F32/100

Meta Tags0/15

Content0/12

Headings6/8

Technical14/25

E-E-A-T0/7

Images0/7

Links0/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

echemi.comechemi.com

No Title Found

No description available for this page.

Title Length0 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing page title — critical for SEO rankings and SERP display
• Missing meta description — important for click-through rates in SERPs
• Very thin content (0 words). Search engines need substantial content for ranking.

9 issues found

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Crawlability

Sitemap

Type: index

65 URLs

65 sub-sitemaps

robots.txt

162 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.

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AI & LLM Readiness

F25/100

Bot Access

19/25

Machine Read.

4/25

Schema Data

0/25

Citation

2/25

AI Bot Access

13/14 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:0%

Words:0

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

71/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

11/20

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

9/15

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.

1 recommendation

•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.

51/100

A+

<0.001 g

CO₂e / view

2.6 KB

Page Weight

95%

Cleaner Than

New Visitor

<0.001 g

Returning (cached)

<0.001 g

Annual (10K/mo)

36 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

HTML

2.6 KB

Green Hosting Not Verified

Alibaba Cloud

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

145d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

11.03.2026

Valid Until

24.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

echemi.com*.echemi.com

SHA-256 Fingerprint

9F:84:E3:B3:47:16:23:FE:99:69:B7:90:22:C2:B6:0E:59:7E:8C:73...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-methods

OPTIONS,GET,POST

access-control-allow-origin

access-control-expose-headers

x-amzn-waf-action

access-control-max-age

86400

alt-svc

h3=":443"; ma=86400

cache-control

🔴 No Cache(no-store, max-age=0)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

echemi.com

Domain Age

17y 10m

Created

07.07.2008

Expires

07.07.2030

Last Updated

31.03.2025

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.

52/100

Mobile Friendly

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

66/100

Readability

/30

19/30

16px · LH --

Hierarchy

/20

8/20

WCAG

/25

19/25

Performance

/25

20/25

System fonts

Heading Font

Arial

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

Single Family

left aligned

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

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

Flesch 0

Color Palette

1 unique colors

Light

#ffffff

Background· 100%

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

23e7dc30244d.56b6ee95.eu-west-3.token.awswaf.com(1)

Website Identity

echemi.com

17 years old

Location detected: 🇩🇪 Germanyvia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.en

Sponsored

Last analyzed: 02 May 2026 at 05:12

Historical Analysis & Change Tracking