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berkeleybop.org screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

berkeleybop.org

Home | BBOP @ LBNL

Page Load Speed

2.1 sec in total

First Response

647 ms

Resources Loaded

1.3 sec

Page Rendered

182 ms

berkeleybop.org screenshot

About Website

Visit berkeleybop.org now to see the best up-to-date Berkeleybop content for Taiwan and also check out these interesting facts you probably never knew about berkeleybop.org

Visit berkeleybop.org

Key Findings

We analyzed Berkeleybop.org page load time and found that the first response time was 647 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

berkeleybop.org performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

69/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

67/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.678

8/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

berkeleybop.org

647 ms

system.base.css

70 ms

system.menus.css

136 ms

system.messages.css

136 ms

system.theme.css

137 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that all of those requests were addressed to Berkeleybop.org and no external sources were called. The less responsive or slowest element that took the longest time to load (647 ms) belongs to the original domain Berkeleybop.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 147.8 kB (72%)

Content Size

204.6 kB

After Optimization

56.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Berkeleybop.org main page is 204.6 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. 15% of websites need less resources to load. Javascripts take 107.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 11.1 kB

  • Original 14.6 kB
  • After minification 13.4 kB
  • After compression 3.5 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 11.1 kB or 76% of the original size.

Image Optimization

-17%

Potential reduce by 627 B

  • Original 3.6 kB
  • After minification 3.0 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, Berkeleybop needs image optimization as it can save up to 627 B or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 75.4 kB

  • Original 107.9 kB
  • After minification 91.7 kB
  • After compression 32.6 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 75.4 kB or 70% of the original size.

CSS Optimization

-77%

Potential reduce by 60.7 kB

  • Original 78.4 kB
  • After minification 57.3 kB
  • After compression 17.7 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. Berkeleybop.org needs all CSS files to be minified and compressed as it can save up to 60.7 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (85%)

Requests Now

40

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Berkeleybop. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

berkeleybop.org

berkeleybop.org

647 ms

system.base.css

system.base.css

70 ms

system.menus.css

system.menus.css

136 ms

system.messages.css

system.messages.css

136 ms

system.theme.css

system.theme.css

137 ms

comment.css

comment.css

137 ms

field.css

field.css

138 ms

node.css

node.css

139 ms

search.css

search.css

199 ms

user.css

user.css

200 ms

views.css

views.css

201 ms

ctools.css

ctools.css

202 ms

at.base.css

at.base.css

202 ms

at.layout.css

at.layout.css

205 ms

at.messages.css

at.messages.css

264 ms

html-elements.css

html-elements.css

264 ms

forms.css

forms.css

264 ms

tables.css

tables.css

263 ms

page.css

page.css

264 ms

articles.css

articles.css

268 ms

comments.css

comments.css

328 ms

fields.css

fields.css

328 ms

blocks.css

blocks.css

328 ms

navigation.css

navigation.css

329 ms

colors.css

colors.css

329 ms

sky.settings.style.css

sky.settings.style.css

337 ms

print.css

print.css

391 ms

sky.responsive.layout.css

sky.responsive.layout.css

392 ms

sky.responsive.style.css

sky.responsive.style.css

392 ms

sky.responsive.gpanels.css

sky.responsive.gpanels.css

394 ms

bbop.css

bbop.css

395 ms

jquery.js

jquery.js

547 ms

jquery.once.js

jquery.once.js

456 ms

drupal.js

drupal.js

456 ms

vertical-tabs.js

vertical-tabs.js

457 ms

scripts.js

scripts.js

459 ms

respond.js

respond.js

455 ms

LBNL_logo.png

LBNL_logo.png

70 ms

menu-leaf.png

menu-leaf.png

67 ms

menu-collapsed.png

menu-collapsed.png

71 ms

nih-logo.gif

nih-logo.gif

70 ms

Accessibility Review

berkeleybop.org accessibility score

89

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

berkeleybop.org 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

berkeleybop.org SEO score

92

Search Engine Optimization Advices

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 Berkeleybop.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 Berkeleybop.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

berkeleybop.org

Open Graph description is not detected on the main page of Berkeleybop. 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: