Tools & Wizards About Us
arduinojson.org screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

arduinojson.org

ArduinoJson: Efficient JSON serialization for embedded C++

Page Load Speed

2.1 sec in total

First Response

54 ms

Resources Loaded

706 ms

Page Rendered

1.4 sec

arduinojson.org screenshot

About Website

Click here to check amazing Arduino JSON content for Poland. Otherwise, check out these important facts you probably never knew about arduinojson.org

ArduinoJson is a JSON library for Arduino, IoT, and any embedded C++ project. It supports JSON serialization, JSON deserialization, MessagePack, streams, and fixed memory allocation. It has a simple A...

Visit arduinojson.org

Key Findings

We analyzed Arduinojson.org page load time and found that the first response time was 54 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

arduinojson.org performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value1.6 s

100/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.7 s

100/100

10%

Network Requests Diagram

arduinojson.org

54 ms

arduinojson.org

75 ms

script.outbound-links.file-downloads.js

500 ms

style.css

46 ms

lite-yt-embed.css

60 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 55% of them (49 requests) were addressed to the original Arduinojson.org, 12% (11 requests) were made to Avatars0.githubusercontent.com and 8% (7 requests) were made to Avatars2.githubusercontent.com. The less responsive or slowest element that took the longest time to load (500 ms) relates to the external source Plausible.arduinojson.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 230.2 kB (11%)

Content Size

2.0 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Arduinojson.org main page is 2.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 90.6 kB

  • Original 116.4 kB
  • After minification 116.4 kB
  • After compression 25.8 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 90.6 kB or 78% of the original size.

Image Optimization

-7%

Potential reduce by 138.4 kB

  • Original 1.9 MB
  • After minification 1.7 MB

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. Arduino JSON images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 1.3 kB

  • Original 2.6 kB
  • After minification 2.6 kB
  • After compression 1.3 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 1.3 kB or 49% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

86

After Optimization

86

  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Arduino JSON. According to our analytics all requests are already optimized.

Network Requests Diagram

arduinojson.org

arduinojson.org

54 ms

arduinojson.org

arduinojson.org

75 ms

script.outbound-links.file-downloads.js

script.outbound-links.file-downloads.js

500 ms

style.css

style.css

46 ms

lite-yt-embed.css

lite-yt-embed.css

60 ms

bundle.js

bundle.js

52 ms

onejs

onejs

7 ms

hqdefault.jpg

hqdefault.jpg

220 ms

1technophile

1technophile

266 ms

BrentIO

BrentIO

272 ms

emnavarro02

emnavarro02

273 ms

thomas-bernhard

thomas-bernhard

271 ms

img_20181116_120521_PZqfHXYn4n.jpg

img_20181116_120521_PZqfHXYn4n.jpg

283 ms

avatar92.jpg

avatar92.jpg

265 ms

c19503a2e2a99898d2d5439fae96403b

c19503a2e2a99898d2d5439fae96403b

265 ms

40183643

40183643

297 ms

LArkema

LArkema

233 ms

falkd

falkd

222 ms

11437469

11437469

228 ms

1982774

1982774

242 ms

23363406

23363406

229 ms

navlogo.svg

navlogo.svg

204 ms

logo.svg

logo.svg

191 ms

programmingeleactronicsacademy.png

programmingeleactronicsacademy.png

194 ms

esphome.png

esphome.png

248 ms

OpenMQTTGateway.png

OpenMQTTGateway.png

251 ms

homie-esp8266-thumb.png

homie-esp8266-thumb.png

246 ms

sming.png

sming.png

243 ms

gauge-s.jpg

gauge-s.jpg

246 ms

weather-m5-paper.jpg

weather-m5-paper.jpg

254 ms

arduino-ocpp.png

arduino-ocpp.png

267 ms

wled.jpg

wled.jpg

267 ms

mclighting.jpg

mclighting.jpg

281 ms

theengs-decoder.jpg

theengs-decoder.jpg

271 ms

hasp-lvgl.png

hasp-lvgl.png

291 ms

3d-printed-rover.jpg

3d-printed-rover.jpg

301 ms

esp32-weather-station.jpg

esp32-weather-station.jpg

306 ms

bus-arrival.jpg

bus-arrival.jpg

295 ms

esp8266-social-display.jpg

esp8266-social-display.jpg

300 ms

atmoscan.jpg

atmoscan.jpg

309 ms

AutoClock.png

AutoClock.png

336 ms

iot-wallet-thumbnail.jpg

iot-wallet-thumbnail.jpg

328 ms

m5stack-sd-updater-thumb.png

m5stack-sd-updater-thumb.png

336 ms

epaper-weather-display-thumb.jpg

epaper-weather-display-thumb.jpg

363 ms

network-monitor.jpg

network-monitor.jpg

335 ms

3d-printer-monitor-thumb.jpg

3d-printer-monitor-thumb.jpg

346 ms

clock-news-weather-thumb.jpg

clock-news-weather-thumb.jpg

358 ms

roller-blind-thumb.jpg

roller-blind-thumb.jpg

362 ms

led-strip-thumb.jpg

led-strip-thumb.jpg

369 ms

location-tracker-thumb.jpg

location-tracker-thumb.jpg

377 ms

youtube-counter-thumb.jpg

youtube-counter-thumb.jpg

376 ms

alexa-thumb.jpg

alexa-thumb.jpg

372 ms

iss-tracker-thumb.jpg

iss-tracker-thumb.jpg

393 ms

pool-monitor-thumb.jpg

pool-monitor-thumb.jpg

393 ms

facebook-counter-thumb.jpg

facebook-counter-thumb.jpg

392 ms

mkr-artik-cloud.jpg

mkr-artik-cloud.jpg

402 ms

6887835

6887835

275 ms

1893754

1893754

278 ms

63792403

63792403

279 ms

3429760

3429760

278 ms

143286875

143286875

280 ms

cyberseekerio

cyberseekerio

229 ms

10061736

10061736

223 ms

40854147

40854147

252 ms

14278196

14278196

224 ms

3099759

3099759

261 ms

8297625

8297625

234 ms

fruktiz32

fruktiz32

223 ms

11785899

11785899

242 ms

948576

948576

230 ms

1048550

1048550

235 ms

7455865

7455865

229 ms

1946364

1946364

233 ms

21287849

21287849

238 ms

19148271

19148271

273 ms

4722227

4722227

281 ms

10200160

10200160

243 ms

37884999

37884999

228 ms

49983291

49983291

228 ms

22465338

22465338

227 ms

att_maker.jpg

att_maker.jpg

386 ms

jumpway.jpg

jumpway.jpg

221 ms

telegram-bot.jpg

telegram-bot.jpg

233 ms

google-on-esp32.jpg

google-on-esp32.jpg

242 ms

luciferin.png

luciferin.png

183 ms

educ8s.jpg

educ8s.jpg

193 ms

georges-auberger.jpg

georges-auberger.jpg

187 ms

brad-matias.webp

brad-matias.webp

199 ms

jmlocci.jpg

jmlocci.jpg

210 ms

Accessibility Review

arduinojson.org accessibility score

86

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

ARIA input fields do not have accessible names

High

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

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

Heading elements are not in a sequentially-descending order

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

arduinojson.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

arduinojson.org SEO score

93

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

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 Arduinojson.org 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 Arduinojson.org 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

arduinojson.org

Open Graph data is detected on the main page of Arduino JSON. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: