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Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

pdfannotator.com

PDF Annotator - Annotate, Edit, Comment & Handwrite on PDF

Page Load Speed

2.6 sec in total

First Response

247 ms

Resources Loaded

2 sec

Page Rendered

318 ms

pdfannotator.com screenshot

About Website

Welcome to pdfannotator.com homepage info - get ready to check PDF Annotator best content for United States right away, or after learning these important things about pdfannotator.com

Comment and edit PDF. Add text, highlights, drawings, images. Insert, delete & merge pages. Handwritten PDF annotations. 2M+ downloads! FREE trial.

Visit pdfannotator.com

Key Findings

We analyzed Pdfannotator.com page load time and found that the first response time was 247 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

pdfannotator.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value2,430 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

pdfannotator.com

247 ms

pdfannotator.com

373 ms

467 ms

bootstrap.css

185 ms

api.js

29 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 64% of them (27 requests) were addressed to the original Pdfannotator.com, 12% (5 requests) were made to Gstatic.com and 10% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (643 ms) belongs to the original domain Pdfannotator.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 381.0 kB (40%)

Content Size

947.5 kB

After Optimization

566.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pdfannotator.com main page is 947.5 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. 60% of websites need less resources to load. Javascripts take 743.4 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 36.4 kB

  • Original 43.9 kB
  • After minification 26.9 kB
  • After compression 7.5 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 16.9 kB, which is 39% 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 36.4 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 135 B

  • Original 99.1 kB
  • After minification 99.0 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 Annotator images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 341.9 kB

  • Original 743.4 kB
  • After minification 743.3 kB
  • After compression 401.5 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 341.9 kB or 46% of the original size.

CSS Optimization

-4%

Potential reduce by 2.7 kB

  • Original 61.1 kB
  • After minification 61.1 kB
  • After compression 58.4 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. Pdfannotator.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (37%)

Requests Now

38

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PDF Annotator. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pdfannotator.com

pdfannotator.com

247 ms

pdfannotator.com

pdfannotator.com

373 ms

467 ms

bootstrap.css

bootstrap.css

185 ms

api.js

api.js

29 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

419 ms

all.min.js

all.min.js

643 ms

custom.min.js

custom.min.js

309 ms

gtm.js

gtm.js

113 ms

recaptcha__en.js

recaptcha__en.js

108 ms

Logo.png

Logo.png

194 ms

VideoStill.png

VideoStill.png

251 ms

stars45.png

stars45.png

248 ms

magnify.cur

magnify.cur

250 ms

screenshot.png

screenshot.png

461 ms

PA5_Auto_Smooth.png

PA5_Auto_Smooth.png

470 ms

berkeley.svg

berkeley.svg

454 ms

ibm.svg

ibm.svg

455 ms

univtokyo.svg

univtokyo.svg

457 ms

siemens.svg

siemens.svg

467 ms

lufthansa.svg

lufthansa.svg

469 ms

intel.svg

intel.svg

471 ms

hp.svg

hp.svg

472 ms

microsoft.svg

microsoft.svg

474 ms

sony.svg

sony.svg

554 ms

vt.svg

vt.svg

555 ms

marriott.svg

marriott.svg

559 ms

fujitsu.svg

fujitsu.svg

557 ms

Logo.png

Logo.png

563 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

579 ms

consent.js

consent.js

238 ms

js

js

94 ms

destination

destination

50 ms

script.js

script.js

25 ms

anchor

anchor

29 ms

banner.no-autoblock.js

banner.no-autoblock.js

8 ms

styles__ltr.css

styles__ltr.css

5 ms

recaptcha__en.js

recaptcha__en.js

15 ms

PrkudGCQeEvbQYNFhjIpA0LAaHZSnSlqfimkHjP8BB8.js

PrkudGCQeEvbQYNFhjIpA0LAaHZSnSlqfimkHjP8BB8.js

44 ms

webworker.js

webworker.js

46 ms

logo_48.png

logo_48.png

34 ms

recaptcha__en.js

recaptcha__en.js

46 ms

Accessibility Review

pdfannotator.com accessibility score

83

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Best Practices

pdfannotator.com best practices score

83

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

SEO Factors

pdfannotator.com SEO score

97

Search Engine Optimization Advices

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 Pdfannotator.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 Pdfannotator.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

pdfannotator.com

Open Graph description is not detected on the main page of PDF Annotator. 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: