Tools & Wizards About Us

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

gnps.ucsd.edu

GNPS - Analyze, Connect, and Network with your Mass Spectrometry Data

Page Load Speed

3.2 sec in total

First Response

262 ms

Resources Loaded

2.5 sec

Page Rendered

458 ms

About Website

Click here to check amazing GNPS Ucsd content for United States. Otherwise, check out these important facts you probably never knew about gnps.ucsd.edu

The Global Natural Product Social Molecular Networking (GNPS) site creates a community for natural product researchers working with mass spectrometry data.

Visit gnps.ucsd.edu

Key Findings

We analyzed Gnps.ucsd.edu page load time and found that the first response time was 262 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

gnps.ucsd.edu performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value3,120 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value17.9 s

4/100

10%

Network Requests Diagram

gnps.ucsd.edu

262 ms

gnps-splash.jsp

458 ms

main.css

349 ms

all.css

75 ms

bootstrap.min.css

65 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 17% of them (8 requests) were addressed to the original Gnps.ucsd.edu, 38% (18 requests) were made to Platform.twitter.com and 10% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (825 ms) belongs to the original domain Gnps.ucsd.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 106.8 kB (20%)

Content Size

536.4 kB

After Optimization

429.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Gnps.ucsd.edu main page is 536.4 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. Only a small number of websites need less resources to load. Javascripts take 232.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 24.3 kB

  • Original 30.3 kB
  • After minification 23.0 kB
  • After compression 6.0 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 7.3 kB, which is 24% 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 24.3 kB or 80% of the original size.

Image Optimization

-16%

Potential reduce by 31.1 kB

  • Original 189.9 kB
  • After minification 158.9 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. Obviously, GNPS Ucsd needs image optimization as it can save up to 31.1 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-17%

Potential reduce by 39.0 kB

  • Original 232.1 kB
  • After minification 215.3 kB
  • After compression 193.1 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 39.0 kB or 17% of the original size.

CSS Optimization

-15%

Potential reduce by 12.5 kB

  • Original 84.1 kB
  • After minification 80.7 kB
  • After compression 71.6 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. Gnps.ucsd.edu needs all CSS files to be minified and compressed as it can save up to 12.5 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (68%)

Requests Now

44

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of GNPS Ucsd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

gnps.ucsd.edu accessibility score

78

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Heading elements are not in a sequentially-descending order

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

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

Best Practices

gnps.ucsd.edu 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

gnps.ucsd.edu SEO score

58

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Gnps.ucsd.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 Gnps.ucsd.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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