Tools & Wizards About Us

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

medarchive.org

medRxiv.org - the preprint server for Health Sciences

Page Load Speed

1.1 sec in total

First Response

85 ms

Resources Loaded

929 ms

Page Rendered

122 ms

About Website

Click here to check amazing Medarchive content. Otherwise, check out these important facts you probably never knew about medarchive.org

medRxiv - the preprint server for Health Sciences, operated by Cold Spring Harbor Laboratory, a research and educational institution

Visit medarchive.org

Key Findings

We analyzed Medarchive.org page load time and found that the first response time was 85 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

medarchive.org performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.548

13/100

15%

TTI (Time to Interactive)

Value7.0 s

52/100

10%

Network Requests Diagram

medrxiv.org

85 ms

www.medrxiv.org

412 ms

css__HZ-qMUtEfy3t2_CcrU8XBY06UykWM66UEaEJRxHJjoU__Rj2PxW-GG5BZAhyDpkb4wk4U5vUyOcJDOZ-zwrGtcrw__dTC-DvjEzwFatKf09Kcc-myTYgINmL1PJ-NtzQ_PcbY.css

13 ms

css__vP96nkAt3EeLU62QRdHXKZuS9tqQ1EMDJC_PSKd7hEk__lHjEjA8vesYocDHspzRjJD6B-seMDbxqo3imDh_XOlQ__dTC-DvjEzwFatKf09Kcc-myTYgINmL1PJ-NtzQ_PcbY.css

49 ms

css__nbQdqGfOT1BnxNQtszq1Zd2M9_kKoO1JyIz0NoNG6_s__1DRWXQzAoLHKAicR_9AnF1-uoid-Dmi1-kB07HSe-7k__dTC-DvjEzwFatKf09Kcc-myTYgINmL1PJ-NtzQ_PcbY.css

29 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Medarchive.org, 10% (2 requests) were made to D33xdlntwy0kbs.cloudfront.net and 10% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (412 ms) relates to the external source Medrxiv.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 143.1 kB (43%)

Content Size

332.2 kB

After Optimization

189.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Medarchive.org main page is 332.2 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. 45% of websites need less resources to load. Javascripts take 145.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 31.6 kB

  • Original 41.0 kB
  • After minification 38.8 kB
  • After compression 9.4 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 31.6 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 179 B

  • Original 54.9 kB
  • After minification 54.7 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. Medarchive images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 72.8 kB

  • Original 145.3 kB
  • After minification 145.3 kB
  • After compression 72.5 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 72.8 kB or 50% of the original size.

CSS Optimization

-42%

Potential reduce by 38.5 kB

  • Original 91.1 kB
  • After minification 52.6 kB
  • After compression 52.6 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. Medarchive.org needs all CSS files to be minified and compressed as it can save up to 38.5 kB or 42% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (65%)

Requests Now

17

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Medarchive. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

medarchive.org accessibility score

88

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

Links do not have a discernible name

Best Practices

medarchive.org best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

medarchive.org SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

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