esp32.com

https://esp32.com· First analyzed 17 May 2026· Updated 17 May 2026

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esp32.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

95.40.175.5

Site Location

🇭🇰 Hong Kongvia ip

Server Location

🇭🇰 Hong Kong, Hong Kong

ASN

AS16509

Organization

AWS EC2 (ap-east-1)

Server

Apache

Nameservers

ns-862.awsdns-43.net.ns-1124.awsdns-12.org.ns-1750.awsdns-26.co.uk.ns-319.awsdns-39.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

456 KB

42 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

6 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Fonts

Web Servers

SEO Analysis

D52/100

Meta Tags5/15

Content9/12

Headings3/8

Technical18/21

E-E-A-T0/7

Images0/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

esp32.comesp32.com

ESP32 Forum - Index page

Espressif ESP32 Official Forum

Title Length24 chars

Recommended: 50-60 chars (~149px / 580px)

Description Length30 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

D45/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

1/25

Citation

11/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

def. lists

Text ratio:7%

Words:307

Token eff.:Optimal

Sections/1K:29.3

Depth:1/5

Structured Data

Microdata

BreadcrumbListmicrodata

Citation Readiness

Opening Summary61w

Descriptive Headingsavg 1.6w

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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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.

73/100

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

13/15

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

10/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

4/15

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

2 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.

60/100

46 mg

CO₂e / view

455.9 KB

Page Weight

90%

Cleaner Than

New Visitor

53 mg

Returning (cached)

26 mg

Annual (10K/mo)

5.5 kg

Emission Segments

Data Center

2 mg

Network

14 mg

Device

30 mg

Resource Breakdown

JavaScript

58.8 KB

Images

5.3 KB

CSS

382.2 KB

Fonts

2.0 KB

HTML

7.6 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

118d

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

Valid From

27.02.2026

Valid Until

12.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

esp32.com*.esp32.com

SHA-256 Fingerprint

DA:7F:2B:68:4B:69:FC:60:B5:80:63:86:A8:38:6F:0A:04:B1:58:FF...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-length

1296

content-type

text/html; charset=UTF-8

date

Sun, 17 May 2026 17:52:14 GMT

server

Apache/2.4.52 (Ubuntu)

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

esp32-com.mail.protection.outlook.com

Domain Information

esp32.com

Domain Age

10y 8m

Created

21.09.2015

Expires

21.09.2026

Last Updated

22.09.2025

Registrar

GoDaddy.com, LLC

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.

60/100

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

48/100

Readability

/30

10/30

13px · LH 1.90

Hierarchy

/20

8/20

WCAG

/25

17/25

1.61:1 min contrast

Performance

/25

13/25

1 font · 2 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans13px

Contrast Ratio

1.61:1

44 issues

Reading Comfort

~49 CPL

Optimal (45–75)

16px

17px

13px

Minor Second

Scale

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

⚠️ Wide line spacing (1.90). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 5/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 44 elements below WCAG AA threshold (min 1.6:1).

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

GGoogle FontsFlesch 5

Color Palette

5 unique colors

Light

#ffffff

Background· 86.10000000000001%

#d8dadf

Primary· 2.4%

#aa797a

Secondary· 1.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

.(6)widget.kapa.ai(1)

Website Identity

esp32.com

10 years old

Location detected: 🇭🇰 Hong Kongvia ip

GoDaddy.com, LLC📧 Microsoft 365en-gb

Social Profiles

GitHub

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Last analyzed: 17 May 2026 at 17:52

Historical Analysis & Change Tracking