Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

pdfonline.com

Xodo | Secure All-in-One PDF Solution for Every Platform

Page Load Speed

11.9 sec in total

First Response

483 ms

Resources Loaded

4 sec

Page Rendered

7.4 sec

pdfonline.com screenshot

About Website

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Key Findings

We analyzed Pdfonline.com page load time and found that the first response time was 483 ms and then it took 11.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

pdfonline.com performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

59/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value3,960 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

pdfonline.com

483 ms

pdfonline_2.css

303 ms

smartbanner.css

165 ms

logo-easypdf-app-square.png

257 ms

SpryMenuBar.js

200 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 91% of them (30 requests) were addressed to the original Pdfonline.com, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Pdfonline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 691.4 kB (53%)

Content Size

1.3 MB

After Optimization

614.0 kB

In fact, the total size of Pdfonline.com 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. 30% of websites need less resources to load. Javascripts take 714.0 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 37.1 kB

  • Original 44.2 kB
  • After minification 27.7 kB
  • After compression 7.1 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 16.5 kB, which is 37% 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 37.1 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 16.3 kB

  • Original 428.3 kB
  • After minification 412.0 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 Online images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 533.4 kB

  • Original 714.0 kB
  • After minification 533.2 kB
  • After compression 180.6 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 533.4 kB or 75% of the original size.

CSS Optimization

-88%

Potential reduce by 104.6 kB

  • Original 118.8 kB
  • After minification 64.3 kB
  • After compression 14.3 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. Pdfonline.com needs all CSS files to be minified and compressed as it can save up to 104.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (44%)

Requests Now

32

After Optimization

18

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PDF Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

pdfonline.com accessibility score

79

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

pdfonline.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

pdfonline.com SEO score

92

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

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

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 Pdfonline.com 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 Pdfonline.com 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 Online. 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: