Tools & Wizards About Us
evolution.about.com screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

evolution.about.com

Evolution

Page Load Speed

1.4 sec in total

First Response

147 ms

Resources Loaded

770 ms

Page Rendered

454 ms

evolution.about.com screenshot

About Website

Click here to check amazing Evolution About content for United States. Otherwise, check out these important facts you probably never knew about evolution.about.com

Learn all about the history of life with these resources and articles on natural selection, genetics, cell types, Charles Darwin, and more.

Visit evolution.about.com

Key Findings

We analyzed Evolution.about.com page load time and found that the first response time was 147 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

evolution.about.com performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value1,150 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

evolution.about.com

147 ms

var=ccauds

11 ms

gpt.js

7 ms

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46 ms

eNqFkU0OgkAMhS9knDP4F7doiHE7QMXi0OK0I-DpxQQNEtRV0_Z77WtqRK1ialIuKyYgFZNwDd4U1wC-7cPMfMV2z_6isE3sLUnFXo9rLi3SHjqpaE_MP6vvgYWYDE42ODUOE3MDyth3a_iCIEMqKDrUUXEo_QvYhINGNocNqW_jtoK_5AGhnoIm_E1cUXIGnvDuV0GUyyG9jeJRGrmQI_02P1Lt4-XUY14yglocqHZfSs-QXhJuQB7mC7vE.min.js

59 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Evolution.about.com, 15% (10 requests) were made to F.tqn.com and 11% (7 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (178 ms) relates to the external source J.about.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 589.5 kB (59%)

Content Size

994.1 kB

After Optimization

404.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Evolution.about.com main page is 994.1 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. 60% of websites need less resources to load. Javascripts take 674.7 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 135.5 kB

  • Original 168.9 kB
  • After minification 163.7 kB
  • After compression 33.4 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. 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 135.5 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 2.1 kB

  • Original 150.4 kB
  • After minification 148.3 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. Evolution About images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 451.9 kB

  • Original 674.7 kB
  • After minification 669.9 kB
  • After compression 222.8 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 451.9 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (66%)

Requests Now

58

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Evolution About. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

evolution.about.com

evolution.about.com

147 ms

var=ccauds

var=ccauds

11 ms

gpt.js

gpt.js

7 ms

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eNqNVFtywyAMvFA7nCGZab_S9qPTA8igOJpgYCQ5j9uX1KV1Ohj3x9pBK-0iwEYUlKyxIsbhHkavhlFQH8wsYw8QAnox0MVRH5O9y0piUqwXoBttXo3hb1ER28egUs3oNeFSVTeqxiALHXmoZ8RDV03YbAKDLnpkxAH4iPzEHLnKGZU8KWFdmbC63DO5O9E4pBiyEzGUHXEAf-MilypkRlejl47gxPRJN-4jkC60nnMZnKdwlBXqADJ9nunSNvDD_BfpHYHtYRsvLXbvYwf-FU4mwKmD-vzjCdnDtakaGXckv6ApynFMN80CWuSOEZzlcehkjleGKimqp_4wQ0s38EyuR11r2F13FFC-Y1M6Wsp3Sw7AuJ3e0krvgGfxqPlSzuCS3QFR30Z-uiTk5pQtsf06kgJWXNjsV6eCgprbRHzJZ11i8zFwTvg8vAKW9pagbyc3-R9xlpbWPsbbHKeQW30C1pIamg.min.css

46 ms

eNqFkU0OgkAMhS9knDP4F7doiHE7QMXi0OK0I-DpxQQNEtRV0_Z77WtqRK1ialIuKyYgFZNwDd4U1wC-7cPMfMV2z_6isE3sLUnFXo9rLi3SHjqpaE_MP6vvgYWYDE42ODUOE3MDyth3a_iCIEMqKDrUUXEo_QvYhINGNocNqW_jtoK_5AGhnoIm_E1cUXIGnvDuV0GUyyG9jeJRGrmQI_02P1Lt4-XUY14yglocqHZfSs-QXhJuQB7mC7vE.min.js

eNqFkU0OgkAMhS9knDP4F7doiHE7QMXi0OK0I-DpxQQNEtRV0_Z77WtqRK1ialIuKyYgFZNwDd4U1wC-7cPMfMV2z_6isE3sLUnFXo9rLi3SHjqpaE_MP6vvgYWYDE42ODUOE3MDyth3a_iCIEMqKDrUUXEo_QvYhINGNocNqW_jtoK_5AGhnoIm_E1cUXIGnvDuV0GUyyG9jeJRGrmQI_02P1Lt4-XUY14yglocqHZfSs-QXhJuQB7mC7vE.min.js

59 ms

1034291028.js

1034291028.js

10 ms

pubads_impl_82.js

pubads_impl_82.js

6 ms

container.html

container.html

6 ms

eNqNU9tuwyAM_aFp_EOfNqmdJnXbuyFuQmtwZkwv-_rRNF0jLaN7gQPnYB9jMElBvTPbZBrcQCY15K0By1kfzI3cY2xYjHbCqoRTKkSltRMmmu7-ivbhRTPQK7RY1T35pCynH43j0HPEqMlYPqCY7WdGOS3h60QMzbh8pHH9V-yxgJ7AYcfUoMxluJ5I7DyQ6X30utA4F9RHRYlFlNVfhqnqbGdZ7DyHUm-aS_VzvgQ8V5UuQLCpGesQinVD7HYrSFqThsIPwxpBXFeTQlMcD5Etg1QNtMQW6AX2N2ShepeBBZc-3cCdFtljIn-nP61w7gcTI6iJrZTSnORg0wS_SY5uzkrqWcm3nS4oy6xgeBxLH3fvpeupljriIRFq6fQE3qk_gCfXodv944E27HIoxLoDwaoecVWu_zrPWYAtHM-_cwGpys9xG5aQvgHCtqR3.min.js

eNqNU9tuwyAM_aFp_EOfNqmdJnXbuyFuQmtwZkwv-_rRNF0jLaN7gQPnYB9jMElBvTPbZBrcQCY15K0By1kfzI3cY2xYjHbCqoRTKkSltRMmmu7-ivbhRTPQK7RY1T35pCynH43j0HPEqMlYPqCY7WdGOS3h60QMzbh8pHH9V-yxgJ7AYcfUoMxluJ5I7DyQ6X30utA4F9RHRYlFlNVfhqnqbGdZ7DyHUm-aS_VzvgQ8V5UuQLCpGesQinVD7HYrSFqThsIPwxpBXFeTQlMcD5Etg1QNtMQW6AX2N2ShepeBBZc-3cCdFtljIn-nP61w7gcTI6iJrZTSnORg0wS_SY5uzkrqWcm3nS4oy6xgeBxLH3fvpeupljriIRFq6fQE3qk_gCfXodv944E27HIoxLoDwaoecVWu_zrPWYAtHM-_cwGpys9xG5aQvgHCtqR3.min.js

92 ms

68756X1529942.skimlinks.js

68756X1529942.skimlinks.js

157 ms

gtm.js

gtm.js

114 ms

GettyImages-471768049.jpg

GettyImages-471768049.jpg

116 ms

sprite.png

sprite.png

97 ms

darwinfinches.jpg

darwinfinches.jpg

95 ms

selectiontypes.png

selectiontypes.png

101 ms

pinit.js

pinit.js

89 ms

auto-tagger.js

auto-tagger.js

56 ms

97057.gif

97057.gif

39 ms

GettyImages-imsis614-056.jpg

GettyImages-imsis614-056.jpg

40 ms

chicken_embryo.jpg

chicken_embryo.jpg

42 ms

amzn_ads.js

amzn_ads.js

41 ms

indexHeaderTag.js

indexHeaderTag.js

41 ms

DuplicateSlab-Medium-Web.woff

DuplicateSlab-Medium-Web.woff

42 ms

j.about.com

j.about.com

178 ms

33 ms

cc.js

cc.js

93 ms

analytics.js

analytics.js

61 ms

i.js

i.js

50 ms

fbevents.js

fbevents.js

49 ms

conversion.js

conversion.js

49 ms

v1.js

v1.js

45 ms

bid

bid

49 ms

headertag

headertag

133 ms

eNrTLy5JLMlM1k8uLtZPSU1LLM0p0S_LTEnNL9YtSNbRxyJbkJNY6VRaUpKfBwCs7xbN.min.css

eNrTLy5JLMlM1k8uLtZPSU1LLM0p0S_LTEnNL9YtSNbRxyJbkJNY6VRaUpKfBwCs7xbN.min.css

42 ms

pinit_main.js

pinit_main.js

61 ms

collect

collect

25 ms

collect

collect

79 ms

124 ms

collect

collect

26 ms

collect

collect

29 ms

collect

collect

32 ms

collect

collect

27 ms

collect

collect

27 ms

collect

collect

71 ms

Reading-Dimitri-Otis-Digital-Vision-Getty-Images-97534501.jpg

Reading-Dimitri-Otis-Digital-Vision-Getty-Images-97534501.jpg

14 ms

GettyImages-141484803.jpg

GettyImages-141484803.jpg

27 ms

GettyImages-85635648.jpg

GettyImages-85635648.jpg

27 ms

GettyImages-465577832.jpg

GettyImages-465577832.jpg

26 ms

collect

collect

43 ms

collect

collect

41 ms

47 ms

track

track

46 ms

init1.js

init1.js

69 ms

rt=ifr

rt=ifr

25 ms

link

link

11 ms

track.php

track.php

23 ms

g.json

g.json

47 ms

tpc=na_id

tpc=na_id

12 ms

5907

5907

29 ms

pixel

pixel

21 ms

usermatchredir

usermatchredir

12 ms

3 ms

tpid=Vu5uf8AoJVkAAF78ID0AAADI%26630

tpid=Vu5uf8AoJVkAAF78ID0AAADI%26630

7 ms

pixel

pixel

15 ms

362738.gif

362738.gif

6 ms

4 ms

Accessibility Review

evolution.about.com accessibility score

91

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

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

Image elements do not have [alt] attributes

Best Practices

evolution.about.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

evolution.about.com SEO score

92

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

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Evolution.about.com 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 Evolution.about.com 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

evolution.about.com

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