Tools & Wizards About Us

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

metacyc.org

MetaCyc: Metabolic Pathways From all Domains of Life

Page Load Speed

2.9 sec in total

First Response

236 ms

Resources Loaded

2.2 sec

Page Rendered

430 ms

About Website

Welcome to metacyc.org homepage info - get ready to check Meta Cyc best content for Germany right away, or after learning these important things about metacyc.org

MetaCyc is a highly curated metabolic database that contains metabolic pathways, enzymes, metabolites, and reactions from all domains of life.

Visit metacyc.org

Key Findings

We analyzed Metacyc.org page load time and found that the first response time was 236 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

metacyc.org performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value960 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.36

30/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

metacyc.org

236 ms

metacyc.org

436 ms

BioCyc_Extra.css

173 ms

jquery-3.5.1.min.js

182 ms

jquery-migrate-3.3.2.min.js

157 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 30% of them (39 requests) were addressed to the original Metacyc.org, 55% (72 requests) were made to Cdnjs.cloudflare.com and 7% (9 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (768 ms) belongs to the original domain Metacyc.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 122.3 kB (13%)

Content Size

973.3 kB

After Optimization

851.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Metacyc.org main page is 973.3 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. 70% of websites need less resources to load. Images take 656.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 85.8 kB

  • Original 105.2 kB
  • After minification 83.6 kB
  • After compression 19.4 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 21.6 kB, which is 21% 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 85.8 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 12.6 kB

  • Original 656.8 kB
  • After minification 644.2 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. Meta Cyc images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 11.7 kB

  • Original 159.4 kB
  • After minification 159.4 kB
  • After compression 147.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-24%

Potential reduce by 12.2 kB

  • Original 51.8 kB
  • After minification 51.8 kB
  • After compression 39.6 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. Metacyc.org needs all CSS files to be minified and compressed as it can save up to 12.2 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 97 (78%)

Requests Now

125

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 125 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Meta Cyc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 85 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

metacyc.org accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

metacyc.org best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

metacyc.org SEO score

71

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

Page is blocked from indexing

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

High

Tap targets are not sized appropriately

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 Metacyc.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 Metacyc.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

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