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metacyc.org screenshot

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

metacyc.org screenshot

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

metacyc.org

metacyc.org

236 ms

metacyc.org

metacyc.org

436 ms

BioCyc_Extra.css

BioCyc_Extra.css

173 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

182 ms

jquery-migrate-3.3.2.min.js

jquery-migrate-3.3.2.min.js

157 ms

base-min.css

base-min.css

225 ms

grids-min.css

grids-min.css

225 ms

grids-responsive-min.css

grids-responsive-min.css

226 ms

BioCyc_Extra.css

BioCyc_Extra.css

297 ms

gallery-datatable-selection.css

gallery-datatable-selection.css

372 ms

combined.css

combined.css

404 ms

font-awesome.min.css

font-awesome.min.css

222 ms

yui-min.js

yui-min.js

233 ms

prototype.min.js

prototype.min.js

256 ms

combined-early.js

combined-early.js

454 ms

fonts-min.css

fonts-min.css

369 ms

webgraphics.js

webgraphics.js

438 ms

pathwayTools-min.js

pathwayTools-min.js

469 ms

lite-youtube.js

lite-youtube.js

219 ms

promoSlideShow.js

promoSlideShow.js

525 ms

combined-1.js

combined-1.js

751 ms

jquery-ui.min.js

jquery-ui.min.js

214 ms

jquery-ui.css

jquery-ui.css

217 ms

get-organisms-fast.js

get-organisms-fast.js

520 ms

get-user-data.js

get-user-data.js

566 ms

userWebsiteCustomization.js

userWebsiteCustomization.js

623 ms

paywall-unhidelogin.js

paywall-unhidelogin.js

624 ms

core@2

core@2

203 ms

tippy.js@6

tippy.js@6

211 ms

core@2.11.6

core@2.11.6

96 ms

tippy.js@6.3.7

tippy.js@6.3.7

32 ms

tippy-bundle.umd.min.js

tippy-bundle.umd.min.js

16 ms

popper.min.js

popper.min.js

21 ms

gtm.js

gtm.js

87 ms

widget-base.css

widget-base.css

16 ms

datatable-base.css

datatable-base.css

19 ms

datatable-message.css

datatable-message.css

28 ms

datatable-sort.css

datatable-sort.css

54 ms

navbox-hide.png

navbox-hide.png

240 ms

navbox-show.png

navbox-show.png

240 ms

login-area

login-area

232 ms

new.png

new.png

234 ms

MetaCyc-logo-color.svg

MetaCyc-logo-color.svg

224 ms

Rauvolfia_serpentina.jpg

Rauvolfia_serpentina.jpg

508 ms

vitamin_D_1.jpg

vitamin_D_1.jpg

508 ms

sulfur.jpg

sulfur.jpg

541 ms

arsenic.jpg

arsenic.jpg

542 ms

ergotism.jpg

ergotism.jpg

539 ms

lyngbiatoxins.jpg

lyngbiatoxins.jpg

541 ms

Beer.jpg

Beer.jpg

543 ms

capsaicin_biosynthesis.jpg

capsaicin_biosynthesis.jpg

651 ms

chitin.jpg

chitin.jpg

653 ms

ursodeoxycholate.jpg

ursodeoxycholate.jpg

708 ms

Twitter-white.png

Twitter-white.png

654 ms

f_logo_white.png

f_logo_white.png

653 ms

SRILogoW.png

SRILogoW.png

654 ms

escape-min.js

escape-min.js

175 ms

array-extras-min.js

array-extras-min.js

176 ms

array-invoke-min.js

array-invoke-min.js

174 ms

arraylist-min.js

arraylist-min.js

174 ms

oop-min.js

oop-min.js

178 ms

attribute-core-min.js

attribute-core-min.js

215 ms

event-custom-base-min.js

event-custom-base-min.js

179 ms

event-custom-complex-min.js

event-custom-complex-min.js

527 ms

attribute-observable-min.js

attribute-observable-min.js

215 ms

attribute-extras-min.js

attribute-extras-min.js

179 ms

attribute-base-min.js

attribute-base-min.js

180 ms

base-core-min.js

base-core-min.js

215 ms

base-observable-min.js

base-observable-min.js

213 ms

base-base-min.js

base-base-min.js

212 ms

base-build-min.js

base-build-min.js

283 ms

json-parse-min.js

json-parse-min.js

283 ms

model-min.js

model-min.js

282 ms

model-list-min.js

model-list-min.js

284 ms

event-base-min.js

event-base-min.js

282 ms

dom-core-min.js

dom-core-min.js

286 ms

dom-base-min.js

dom-base-min.js

288 ms

selector-native-min.js

selector-native-min.js

285 ms

selector-min.js

selector-min.js

289 ms

node-core-min.js

node-core-min.js

287 ms

dom-style-min.js

dom-style-min.js

294 ms

node-base-min.js

node-base-min.js

295 ms

event-delegate-min.js

event-delegate-min.js

296 ms

node-event-delegate-min.js

node-event-delegate-min.js

285 ms

datatable-core-min.js

datatable-core-min.js

295 ms

view-min.js

view-min.js

307 ms

classnamemanager-min.js

classnamemanager-min.js

289 ms

datatable-head-min.js

datatable-head-min.js

306 ms

datatable-body-min.js

datatable-body-min.js

320 ms

datatable-table-min.js

datatable-table-min.js

310 ms

attribute-complex-min.js

attribute-complex-min.js

313 ms

pluginhost-base-min.js

pluginhost-base-min.js

312 ms

analytics.js

analytics.js

248 ms

hotjar-2449904.js

hotjar-2449904.js

264 ms

subscription-banner

subscription-banner

768 ms

pluginhost-config-min.js

pluginhost-config-min.js

327 ms

base-pluginhost-min.js

base-pluginhost-min.js

327 ms

event-synthetic-min.js

event-synthetic-min.js

323 ms

event-focus-min.js

event-focus-min.js

322 ms

node-style-min.js

node-style-min.js

318 ms

widget-base-min.js

widget-base-min.js

326 ms

widget-htmlparser-min.js

widget-htmlparser-min.js

322 ms

widget-skin-min.js

widget-skin-min.js

324 ms

pennState.png

pennState.png

548 ms

UWisconsin.png

UWisconsin.png

555 ms

UMinnesota.png

UMinnesota.png

553 ms

pnnlFlatLogo.jpg

pnnlFlatLogo.jpg

573 ms

widget-uievents-min.js

widget-uievents-min.js

290 ms

datatable-base-min.js

datatable-base-min.js

290 ms

datatable-column-widths-min.js

datatable-column-widths-min.js

309 ms

intl-min.js

intl-min.js

290 ms

datatable-message_en.js

datatable-message_en.js

302 ms

datatable-message-min.js

datatable-message-min.js

242 ms

datatable-mutable-min.js

datatable-mutable-min.js

242 ms

datatable-sort_en.js

datatable-sort_en.js

243 ms

datatable-sort-min.js

datatable-sort-min.js

245 ms

plugin-min.js

plugin-min.js

242 ms

datasource-local-min.js

datasource-local-min.js

355 ms

datatable-datasource-min.js

datatable-datasource-min.js

240 ms

datasource-get-min.js

datasource-get-min.js

238 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

239 ms

collect

collect

94 ms

modules.8203b45d0468dcab4b64.js

modules.8203b45d0468dcab4b64.js

89 ms

node-pluginhost-min.js

node-pluginhost-min.js

59 ms

dom-screen-min.js

dom-screen-min.js

214 ms

node-screen-min.js

node-screen-min.js

60 ms

paginator-core-min.js

paginator-core-min.js

61 ms

paginator-min.js

paginator-min.js

58 ms

event-mouseenter-min.js

event-mouseenter-min.js

62 ms

event-hover-min.js

event-hover-min.js

58 ms

collect

collect

28 ms

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

60 ms

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

metacyc.org

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: