Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

pubmed.org

Home - PubMed - NCBI

Page Load Speed

5.9 sec in total

First Response

70 ms

Resources Loaded

5.7 sec

Page Rendered

169 ms

pubmed.org screenshot

About Website

Click here to check amazing Pub Med content for United States. Otherwise, check out these important facts you probably never knew about pubmed.org

PubMed comprises more than 25 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central an...

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Key Findings

We analyzed Pubmed.org page load time and found that the first response time was 70 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

pubmed.org performance score

0

Network Requests Diagram

pubmed.org

70 ms

1338 ms

jig.min.js

1741 ms

3579733.css

1847 ms

3923904.css

1881 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Pubmed.org, 69% (18 requests) were made to Static.pubmed.gov and 27% (7 requests) were made to Ncbi.nlm.nih.gov. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Static.pubmed.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 980.8 kB (74%)

Content Size

1.3 MB

After Optimization

351.1 kB

In fact, the total size of Pubmed.org main page is 1.3 MB. 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. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 53.7 kB

  • Original 64.5 kB
  • After minification 62.0 kB
  • After compression 10.8 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 53.7 kB or 83% of the original size.

Image Optimization

-25%

Potential reduce by 6.5 kB

  • Original 26.3 kB
  • After minification 19.8 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, Pub Med needs image optimization as it can save up to 6.5 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 833.8 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 296.5 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 833.8 kB or 74% of the original size.

CSS Optimization

-78%

Potential reduce by 86.9 kB

  • Original 110.9 kB
  • After minification 107.4 kB
  • After compression 24.0 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. Pubmed.org needs all CSS files to be minified and compressed as it can save up to 86.9 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (54%)

Requests Now

24

After Optimization

11

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pub Med. 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 JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

SEO Factors

pubmed.org SEO score

0

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 Pubmed.org 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 Pubmed.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 Pub Med. 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: