Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

pdf.org

Homepage | Parkinson's Foundation

Page Load Speed

1.4 sec in total

First Response

92 ms

Resources Loaded

1.1 sec

Page Rendered

218 ms

pdf.org screenshot

About Website

Visit pdf.org now to see the best up-to-date Pdf content for United States and also check out these interesting facts you probably never knew about pdf.org

The Parkinson’s Foundation makes life better for people with Parkinson’s disease (PD) by improving care and advancing research toward a cure.

Visit pdf.org

Key Findings

We analyzed Pdf.org page load time and found that the first response time was 92 ms and then it took 1.3 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

pdf.org performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

42/100

10%

LCP (Largest Contentful Paint)

Value32.8 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value2,960 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.205

61/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

pdf.org

92 ms

www.pdf.org

533 ms

reset-min.css

44 ms

style.css

98 ms

navigation.css

52 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 92% of them (49 requests) were addressed to the original Pdf.org, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Static.dudamobile.com. The less responsive or slowest element that took the longest time to load (533 ms) belongs to the original domain Pdf.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 432.4 kB (35%)

Content Size

1.2 MB

After Optimization

794.6 kB

In fact, the total size of Pdf.org main page is 1.2 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. 45% of websites need less resources to load. Images take 685.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 36.2 kB

  • Original 49.0 kB
  • After minification 44.4 kB
  • After compression 12.7 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 36.2 kB or 74% of the original size.

Image Optimization

-6%

Potential reduce by 42.0 kB

  • Original 685.4 kB
  • After minification 643.4 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. Pdf images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 285.9 kB

  • Original 413.0 kB
  • After minification 382.7 kB
  • After compression 127.0 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 285.9 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 68.2 kB

  • Original 79.7 kB
  • After minification 51.9 kB
  • After compression 11.5 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. Pdf.org needs all CSS files to be minified and compressed as it can save up to 68.2 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (49%)

Requests Now

51

After Optimization

26

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pdf. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

pdf.org accessibility score

87

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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.

Best Practices

pdf.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

pdf.org SEO score

77

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

Links do not have descriptive text

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Pdf.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 Pdf.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 Pdf. 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: