Tools & Wizards About Us
esp32.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

esp32.com

ESP32 Forum - Index page

Page Load Speed

5.3 sec in total

First Response

460 ms

Resources Loaded

4.7 sec

Page Rendered

116 ms

esp32.com screenshot

About Website

Visit esp32.com now to see the best up-to-date ESP32 content for United States and also check out these interesting facts you probably never knew about esp32.com

Espressif ESP32 Official Forum

Visit esp32.com

Key Findings

We analyzed Esp32.com page load time and found that the first response time was 460 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

esp32.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

esp32.com

460 ms

esp32.com

1321 ms

css

32 ms

stylesheet.css

227 ms

stylesheet.css

451 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 81% of them (30 requests) were addressed to the original Esp32.com, 8% (3 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Esp32.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 355.0 kB (71%)

Content Size

501.9 kB

After Optimization

146.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Esp32.com main page is 501.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 214.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.3 kB

  • Original 27.7 kB
  • After minification 23.9 kB
  • After compression 6.3 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 3.7 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 21.3 kB or 77% of the original size.

Image Optimization

-41%

Potential reduce by 20.3 kB

  • Original 50.1 kB
  • After minification 29.8 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, ESP32 needs image optimization as it can save up to 20.3 kB or 41% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 140.7 kB

  • Original 214.8 kB
  • After minification 182.3 kB
  • After compression 74.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 140.7 kB or 65% of the original size.

CSS Optimization

-82%

Potential reduce by 172.7 kB

  • Original 209.4 kB
  • After minification 160.0 kB
  • After compression 36.7 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Esp32.com needs all CSS files to be minified and compressed as it can save up to 172.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (87%)

Requests Now

31

After Optimization

4

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ESP32. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

esp32.com

esp32.com

460 ms

esp32.com

esp32.com

1321 ms

css

css

32 ms

stylesheet.css

stylesheet.css

227 ms

stylesheet.css

stylesheet.css

451 ms

responsive.css

responsive.css

813 ms

subway-icons.css

subway-icons.css

837 ms

spectrum.css

spectrum.css

841 ms

subway_op.css

subway_op.css

632 ms

style.css

style.css

674 ms

extensions.css

extensions.css

695 ms

esp32.png

esp32.png

1050 ms

jquery.min.js

jquery.min.js

1343 ms

core.js

core.js

1386 ms

custom.bootstrap.min.js

custom.bootstrap.min.js

1010 ms

custom.js

custom.js

1042 ms

script.js

script.js

1043 ms

forum_fn.js

forum_fn.js

1213 ms

ajax.js

ajax.js

1251 ms

init.min.js

init.min.js

1253 ms

common.css

common.css

1041 ms

links.css

links.css

1195 ms

content.css

content.css

1241 ms

buttons.css

buttons.css

1242 ms

cp.css

cp.css

1250 ms

forms.css

forms.css

1345 ms

colours.css

colours.css

1395 ms

imageset.css

imageset.css

1398 ms

custom.css

custom.css

1447 ms

analytics.js

analytics.js

40 ms

print.css

print.css

228 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4k.woff

33 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4k.woff

58 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4k.woff

62 ms

subway-icons.woff

subway-icons.woff

1049 ms

collect

collect

34 ms

js

js

65 ms

Accessibility Review

esp32.com accessibility score

69

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

ARIA IDs are not unique

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

esp32.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

esp32.com SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Esp32.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Esp32.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

esp32.com

Open Graph description is not detected on the main page of ESP32. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: