• Summary
  • Rating: 64/100
  • Successful tests: 5
  • Failed tests: 3

Page load speed analysis

Click here to check amazing Py Readthedocs content for China. Otherwise, check out these important facts you probably never knew about pypy.readthedocs.org

We analyzed Pypy.readthedocs.org page load time and found that the first response time was 136 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

136 ms
2.2 sec
299 ms

First response

Resources loated

Page rendered

2.6 sec

Total page load time

Normal result


As for redirects, our browser was forwarded to http://pypy.readthedocs.org/en/latest/ before it reached this domain.

Network requests diagram

Our browser made a total of 20 requests to load all elements on the main page. We found that 25% of them (5 requests) were addressed to the original Pypy.readthedocs.org, 60% (12 requests) were made to Media.readthedocs.org and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Media.readthedocs.org.

Page size

In fact, the total size of Pypy.readthedocs.org main page is 310.3 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. 50% of websites need less resources to load. Javascripts take 184.8 kB which makes up the majority of the site volume.

HTML optimization

20.2 kB original
18.3 kB after minification
4.2 kB after compression

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 16.0 kB or 79% of the original size.

JavaScript optimization

184.8 kB original
181.4 kB after minification
66.8 kB after compression

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 118.1 kB or 64% of the original size.

CSS optimization

105.2 kB original
104.4 kB after minification
19.5 kB after compression

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. Pypy.readthedocs.org needs all CSS files to be minified and compressed as it can save up to 85.8 kB or 81% of the original size.

Good result

Total page size 310.3 kB

Size after compression 90.5 kB (71% less)


The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Py Readthedocs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.












All reqests

Possible request optimization










All reqests

Good result

HTTPS certificate

SSL Certificate

Pypy.readthedocs.org has a valid and up-to-date SSL certificate that expires on April 15, 2018. It should be prolonged as soon as possible, as it will expire in less than 30 days.

Good result

IP address

Pypy.readthedocs.org uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace






DNS records

Type Host Target/ip TTL Other

pypy.readthedocs.org 299


aspmx2.googlemail.com 299 Pri: 30


alt1.aspmx.l.google.com 299 Pri: 20


alt2.aspmx.l.google.com 299 Pri: 20


aspmx.l.google.com 299 Pri: 10

Visitor World Map

Country of origin for 22.3% of all visits is China. It lies approximately 7730 miles away from the server location (United States) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up Pypy.readthedocs.org page load time for the majority of users is moving the server to China or just closer to the user base.

Poor result

Language and encoding

Good result









Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pypy.readthedocs.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 Pypy.readthedocs.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.

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Py Readthedocs. 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:

Share this report in social media

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Page load

DNS record

SSL certificate info

Issued To
Common Name (CN): *.readthedocs.org
Organization (O): <Not Part Of Certificate>
Organizational Unit (OU): Domain Control Validated
Serial Number: 67915101995369094642759566475095382443

Issued By
Common Name (CN): COMODO RSA Domain Validation Secure Server CA
Organization (O): COMODO CA Limited
Organizational Unit (OU): <Not Part Of Certificate>

Validity Period
Issued On: Friday, April 15, 2016 at 12:00:00 AM
Expires On: Sunday, April 15, 2018 at 11:59:59 PM