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rna.berkeley.edu screenshot

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

rna.berkeley.edu

Doudna Lab | RNA Biology at UC Berkeley, HHMI

Page Load Speed

786 ms in total

First Response

239 ms

Resources Loaded

344 ms

Page Rendered

203 ms

rna.berkeley.edu screenshot

About Website

Visit rna.berkeley.edu now to see the best up-to-date RNA Berkeley content for United States and also check out these interesting facts you probably never knew about rna.berkeley.edu

The Doudna Lab discovers and develops CRISPR systems and other RNA-guided mechanisms of gene regulation.

Visit rna.berkeley.edu

Key Findings

We analyzed Rna.berkeley.edu page load time and found that the first response time was 239 ms and then it took 547 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

rna.berkeley.edu performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

69/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.1 s

86/100

10%

Network Requests Diagram

rna.berkeley.edu

239 ms

doudna.css

4 ms

jquery-1.8.0.min.js

10 ms

jsddm.js

5 ms

coin-slider.min.js

9 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 92% of them (22 requests) were addressed to the original Rna.berkeley.edu, 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (239 ms) belongs to the original domain Rna.berkeley.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 163.9 kB (18%)

Content Size

916.5 kB

After Optimization

752.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rna.berkeley.edu main page is 916.5 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. Images take 770.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 11.9 kB

  • Original 17.2 kB
  • After minification 15.3 kB
  • After compression 5.3 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 1.9 kB, which is 11% 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 11.9 kB or 69% of the original size.

Image Optimization

-10%

Potential reduce by 77.7 kB

  • Original 770.0 kB
  • After minification 692.3 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. RNA Berkeley images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 65.9 kB

  • Original 118.7 kB
  • After minification 118.1 kB
  • After compression 52.8 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 65.9 kB or 55% of the original size.

CSS Optimization

-80%

Potential reduce by 8.5 kB

  • Original 10.6 kB
  • After minification 6.9 kB
  • After compression 2.1 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. Rna.berkeley.edu needs all CSS files to be minified and compressed as it can save up to 8.5 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (13%)

Requests Now

23

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RNA Berkeley. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rna.berkeley.edu

rna.berkeley.edu

239 ms

doudna.css

doudna.css

4 ms

jquery-1.8.0.min.js

jquery-1.8.0.min.js

10 ms

jsddm.js

jsddm.js

5 ms

coin-slider.min.js

coin-slider.min.js

9 ms

ga.js

ga.js

44 ms

doudna_rna_lab_logo-sm.png

doudna_rna_lab_logo-sm.png

7 ms

logo_igi.jpg

logo_igi.jpg

5 ms

logo_sbi_s.jpg

logo_sbi_s.jpg

5 ms

logo_lbnl_s.jpg

logo_lbnl_s.jpg

6 ms

logo_cchem_s.jpg

logo_cchem_s.jpg

24 ms

logo_mcb.jpg

logo_mcb.jpg

26 ms

logo_qb3_s.jpg

logo_qb3_s.jpg

26 ms

logo_hhmi_s.jpg

logo_hhmi_s.jpg

27 ms

logo_cal_s.jpg

logo_cal_s.jpg

26 ms

slideshow-tron.jpg

slideshow-tron.jpg

31 ms

slideshow-cgas.jpg

slideshow-cgas.jpg

27 ms

slideshow-itc.jpg

slideshow-itc.jpg

30 ms

slideshow-xtal.jpg

slideshow-xtal.jpg

28 ms

slideshow-loadinggel.jpg

slideshow-loadinggel.jpg

28 ms

cas9_spy.jpg

cas9_spy.jpg

26 ms

dicer-250.jpg

dicer-250.jpg

32 ms

hcv_ires_showcase-250.jpg

hcv_ires_showcase-250.jpg

29 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

rna.berkeley.edu accessibility score

89

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

button, link, and menuitem elements do not have accessible names.

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

Links do not have a discernible name

Best Practices

rna.berkeley.edu best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

rna.berkeley.edu SEO score

100

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rna.berkeley.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Rna.berkeley.edu 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

rna.berkeley.edu

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