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asyncapi.com

https://asyncapi.com· First analyzed 29 May 2026· Updated 29 May 2026
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asyncapi.com
Desktop screenshot of asyncapi.com
Mobile screenshot of asyncapi.com
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

63.176.8.218

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Netlify

Nameservers

dns4.p02.nsone.net.dns1.p02.nsone.net.dns2.p02.nsone.net.dns3.p02.nsone.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
657 ms10%
Speed Index
854 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
84 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Platform
Netlify

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Platforms

1
Netlify

SEO Analysis

C67/100
21
5
1
Meta Tags8/15
Content10/12
Headings6/8
Technical13/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
A
asyncapi.comasyncapi.com

AsyncAPI Initiative for event-driven APIs | AsyncAPI Initiative for...

Open source tools to easily build and maintain your event-driven architecture. All powered by the AsyncAPI specification, the industry standa...

Title truncated. Description truncated.
Title Length85 chars

Recommended: 50-60 chars (~494px / 580px)

Description Length191 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (85 chars, ~494px). Will be truncated in search results.

6 issues found

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Crawlability

Sitemap
robots.txt

3 rules

Local SEO

Local Search Readiness

5/100
Poor
2 13 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

D49/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
16/25

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:835
Token eff.:Optimal
Sections/1K:26.3
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary43w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
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.
B
74/100
12
Passed
3
Critical
3
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
7/15
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
64/100
C
197 mg
CO₂e / view
1.9 MB
Page Weight
50%
Cleaner Than
New Visitor
226 mg
vs
Returning (cached)
113 mg
Annual (10K/mo)
23.7 kg
Emission Segments
Data Center
10 mg
Network
58 mg
Device
130 mg
Resource Breakdown
JavaScript
1.3 MB
Images
612.9 KB
CSS
24.5 KB
Fonts
1.2 KB
HTML
11.0 KB
Other
2.6 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
5 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

46%Poor
Interactive

HTTPS

No WAF

64d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.05.2026

Valid Until

02.08.2026

Subject Alternative Names (4)

*.asyncapi.com*.asyncapi.orgasyncapi.comasyncapi.org

SHA-256 Fingerprint

BA:A7:CC:2E:F1:E4:63:08:04:57:34:17:F0:70:6D:38:CA:B7:D7:E6...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
access-control-allow-origin
*
age
0
cache-control
🟡 0s(public,max-age=0,must-revalidate)
cache-status
"Netlify Edge"; fwd=miss
content-encoding
⚡ Brotli(br)
Good Warning Issue

Email Infrastructure

Google Workspace

Score

20

SPF
DKIM
DMARC

MX Records (1)

smtp.google.com

Domain Information

asyncapi.com

Domain Age
9 years

Created

12.05.2017

Expires

12.05.2027

Last Updated

07.05.2026

Registrar

1API GmbH

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.
B
71/100
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, shrink-to-fit=no

Typography & Readability

Apple Color Emoji

WCAG Partial
69/100
Readability
/30
21/30

18px · LH 1.56

Hierarchy
/20
16/20

3.56x ratio

WCAG
/25
16/25

1.92:1 min contrast

Performance
/25
16/25

3 fonts · 1 req

Heading Font

Apple Color Emoji

Sans64px

Body Font

Apple Color Emoji

Sans18px

Contrast Ratio

1.92:1

14 issues

Reading Comfort

~35 CPL

Narrow lines
64px
h1
36px
h2
36px
h3
24px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.9:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.6x larger than body text.

GGoogle FontsBuy on MyFontsFlesch 38

Color Palette

4 unique colors
Light
#ffffff
Background· 82.89999999999999%
#262f40
Primary· 12.1%
#9292a6
Secondary· 3.6%
#181922
Secondary· 1.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
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

22 Resources

20
Scripts
2
Styles
6
Async
11
Defer

Top Script Sources

local(14)googletagmanager.com(3)buttons.github.io(2)google-analytics.com(1)

Website Identity

asyncapi.com

info@asyncapi.com
9 years old
Location detected: 🇩🇪 Germanyvia ip
1API GmbH📧 Google Workspaceen

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Last analyzed: 29 May 2026 at 21:37

Historical Analysis & Change Tracking