Tools & Wizards About Us
phdtree.org screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    95% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

phdtree.org

PhDTree: academic genealogy & family tree

Page Load Speed

750 ms in total

First Response

80 ms

Resources Loaded

475 ms

Page Rendered

195 ms

phdtree.org screenshot

About Website

Click here to check amazing PhD Tree content for United States. Otherwise, check out these important facts you probably never knew about phdtree.org

phdtree is the most comprehensive online database & wiki on academic genealogy & academic family tree for every disciplines.

Visit phdtree.org

Key Findings

We analyzed Phdtree.org page load time and found that the first response time was 80 ms and then it took 670 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

phdtree.org performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

phdtree.org

80 ms

bootstrap.min.css

77 ms

bootstrap-social.css

47 ms

bootstrap-responsive.css

50 ms

base.css

53 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 88% of them (21 requests) were addressed to the original Phdtree.org, 8% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (209 ms) belongs to the original domain Phdtree.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 285.0 kB (71%)

Content Size

399.3 kB

After Optimization

114.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Phdtree.org main page is 399.3 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. 20% of websites need less resources to load. CSS take 179.3 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 17.5 kB

  • Original 21.5 kB
  • After minification 19.2 kB
  • After compression 4.0 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 2.3 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 17.5 kB or 81% of the original size.

Image Optimization

-15%

Potential reduce by 3.2 kB

  • Original 21.3 kB
  • After minification 18.1 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, PhD Tree needs image optimization as it can save up to 3.2 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 115.4 kB

  • Original 177.1 kB
  • After minification 177.1 kB
  • After compression 61.8 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 115.4 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 148.9 kB

  • Original 179.3 kB
  • After minification 169.7 kB
  • After compression 30.4 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. Phdtree.org needs all CSS files to be minified and compressed as it can save up to 148.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (18%)

Requests Now

22

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PhD Tree. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

phdtree.org

phdtree.org

80 ms

bootstrap.min.css

bootstrap.min.css

77 ms

bootstrap-social.css

bootstrap-social.css

47 ms

bootstrap-responsive.css

bootstrap-responsive.css

50 ms

base.css

base.css

53 ms

font-awesome.min.css

font-awesome.min.css

71 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

120 ms

bootstrap.min.js

bootstrap.min.js

89 ms

analytics.js

analytics.js

39 ms

logo.png

logo.png

17 ms

default.mini.jpg

default.mini.jpg

50 ms

zachos_avatar.mini.jpg

zachos_avatar.mini.jpg

62 ms

Richard_N._Zare.mini.jpg

Richard_N._Zare.mini.jpg

71 ms

stuart_a_rice.mini.jpg

stuart_a_rice.mini.jpg

89 ms

Larry_H._Ebbers.mini.jpg

Larry_H._Ebbers.mini.jpg

125 ms

Dennis_Hocevar.mini.jpg

Dennis_Hocevar.mini.jpg

173 ms

stephen_p_mccarthy_1.mini.jpg

stephen_p_mccarthy_1.mini.jpg

189 ms

Robert_S._Langer.mini.jpg

Robert_S._Langer.mini.jpg

160 ms

Wuxiang_Zhu.mini.jpg

Wuxiang_Zhu.mini.jpg

133 ms

Hatsuo_Ishida.mini.jpg

Hatsuo_Ishida.mini.jpg

128 ms

jay_kuo.mini.jpg

jay_kuo.mini.jpg

192 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

209 ms

collect

collect

5 ms

collect

collect

79 ms

Accessibility Review

phdtree.org accessibility score

97

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

phdtree.org best practices score

75

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

High

Browser errors were logged to the console

SEO Factors

phdtree.org SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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 Phdtree.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 Phdtree.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

phdtree.org

Open Graph description is not detected on the main page of PhD Tree. 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: