Tools & Wizards About Us
seleniumjp.connpass.com screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

seleniumjp.connpass.com

日本Seleniumユーザーコミュニティ - connpass

Page Load Speed

5.5 sec in total

First Response

744 ms

Resources Loaded

4.3 sec

Page Rendered

443 ms

seleniumjp.connpass.com screenshot

About Website

Welcome to seleniumjp.connpass.com homepage info - get ready to check Seleniumjp Connpass best content for Japan right away, or after learning these important things about seleniumjp.connpass.com

日本Seleniumユーザーコミュニティ's detail page.

Visit seleniumjp.connpass.com

Key Findings

We analyzed Seleniumjp.connpass.com page load time and found that the first response time was 744 ms and then it took 4.7 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

seleniumjp.connpass.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value8.0 s

2/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value2,950 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value17.5 s

4/100

10%

Network Requests Diagram

seleniumjp.connpass.com

744 ms

connpass.css

1196 ms

css

84 ms

adsbygoogle.js

17 ms

bookmark_button.js

399 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Seleniumjp.connpass.com, 38% (28 requests) were made to Connpass-tokyo.s3.amazonaws.com and 14% (10 requests) were made to Connpass.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Connpass-tokyo.s3.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 545.2 kB (59%)

Content Size

931.7 kB

After Optimization

386.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Seleniumjp.connpass.com main page is 931.7 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. 50% of websites need less resources to load. Javascripts take 518.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 32.4 kB

  • Original 43.3 kB
  • After minification 39.9 kB
  • After compression 10.9 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 32.4 kB or 75% of the original size.

Image Optimization

-5%

Potential reduce by 7.1 kB

  • Original 134.0 kB
  • After minification 126.9 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. Seleniumjp Connpass images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 304.0 kB

  • Original 518.7 kB
  • After minification 509.3 kB
  • After compression 214.7 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 304.0 kB or 59% of the original size.

CSS Optimization

-86%

Potential reduce by 201.7 kB

  • Original 235.7 kB
  • After minification 204.7 kB
  • After compression 34.0 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. Seleniumjp.connpass.com needs all CSS files to be minified and compressed as it can save up to 201.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (41%)

Requests Now

70

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seleniumjp Connpass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

seleniumjp.connpass.com

seleniumjp.connpass.com

744 ms

connpass.css

connpass.css

1196 ms

css

css

84 ms

adsbygoogle.js

adsbygoogle.js

17 ms

bookmark_button.js

bookmark_button.js

399 ms

require.js

require.js

738 ms

connpass.min.js

connpass.min.js

1549 ms

plusone.js

plusone.js

242 ms

ga.js

ga.js

101 ms

f3c7f8ff189b761db5828b6e8b5cb2c5.png

f3c7f8ff189b761db5828b6e8b5cb2c5.png

899 ms

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button-only@2x.png

213 ms

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b7d8cd78c4bf9078be93fe9d47f25226.png

910 ms

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763 ms

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891 ms

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739 ms

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742 ms

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921 ms

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922 ms

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922 ms

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1110 ms

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1059 ms

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1059 ms

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1111 ms

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1111 ms

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1126 ms

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1258 ms

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1245 ms

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1274 ms

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1317 ms

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1292 ms

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1351 ms

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1429 ms

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1424 ms

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1438 ms

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1467 ms

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1483 ms

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1504 ms

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1600 ms

sitelogo_w_670x124.png

sitelogo_w_670x124.png

168 ms

group_cover_blank.jpg

group_cover_blank.jpg

294 ms

user_no_image.gif

user_no_image.gif

320 ms

icon_owner.png

icon_owner.png

473 ms

icon_place.png

icon_place.png

472 ms

icon_official.png

icon_official.png

469 ms

__utm.gif

__utm.gif

59 ms

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

78 ms

262 ms

reset.css

reset.css

9 ms

entry-button.css

entry-button.css

7 ms

bbtn-s_v3.png

bbtn-s_v3.png

8 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

58 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

86 ms

fastbutton

fastbutton

141 ms

sdk.js

sdk.js

497 ms

widgets.js

widgets.js

128 ms

i18n.js

i18n.js

155 ms

postmessageRelay

postmessageRelay

101 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

21 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

16 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

43 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

168 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

50 ms

rpc:shindig_random.js

rpc:shindig_random.js

48 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

48 ms

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

45 ms

151 ms

jot

jot

112 ms

xd_arbiter.php

xd_arbiter.php

216 ms

xd_arbiter.php

xd_arbiter.php

423 ms

xd_arbiter.php

xd_arbiter.php

139 ms

like.php

like.php

87 ms

TY3MhkXpWJ-.js

TY3MhkXpWJ-.js

551 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

613 ms

Accessibility Review

seleniumjp.connpass.com accessibility score

64

Accessibility Issues

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

seleniumjp.connpass.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

High

Page has valid source maps

SEO Factors

seleniumjp.connpass.com SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seleniumjp.connpass.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Seleniumjp.connpass.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

seleniumjp.connpass.com

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