Tools & Wizards About Us
pdfjs.express screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

pdfjs.express

PDF.js Viewer: Annotate, Form Fill | Easy Setup | PDF.js Express

Page Load Speed

1.9 sec in total

First Response

132 ms

Resources Loaded

1.3 sec

Page Rendered

472 ms

pdfjs.express screenshot

About Website

Welcome to pdfjs.express homepage info - get ready to check PDF Js best content for India right away, or after learning these important things about pdfjs.express

Fast & easy PDF.js Viewer integration with PDF.js Express. Add annotations, fill forms & sign PDFs in a web browser. Fully supported - download & try it free

Visit pdfjs.express

Key Findings

We analyzed Pdfjs.express page load time and found that the first response time was 132 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

pdfjs.express performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

71/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value1,230 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.147

77/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

Network Requests Diagram

pdfjs.express

132 ms

pdfjs.express

274 ms

js

57 ms

munchkin.js

53 ms

hotjar-2159231.js

113 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 80% of them (49 requests) were addressed to the original Pdfjs.express, 3% (2 requests) were made to Googletagmanager.com and 3% (2 requests) were made to Munchkin.marketo.net. The less responsive or slowest element that took the longest time to load (673 ms) belongs to the original domain Pdfjs.express.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.1 kB (11%)

Content Size

216.0 kB

After Optimization

192.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Pdfjs.express main page is 216.0 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. 50% of websites need less resources to load. Images take 167.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 23.8 kB

  • Original 30.7 kB
  • After minification 30.6 kB
  • After compression 6.9 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 23.8 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 167.7 kB
  • After minification 167.7 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. PDF Js images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 304 B

  • Original 17.6 kB
  • After minification 17.6 kB
  • After compression 17.3 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 34 (61%)

Requests Now

56

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PDF Js. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pdfjs.express

pdfjs.express

132 ms

pdfjs.express

pdfjs.express

274 ms

js

js

57 ms

munchkin.js

munchkin.js

53 ms

hotjar-2159231.js

hotjar-2159231.js

113 ms

pixel.js

pixel.js

28 ms

styles.e3bf52f9.chunk.css

styles.e3bf52f9.chunk.css

135 ms

517b698cd6e6a768ede1e815805d12f98cc2656f_CSS.5dec253f.chunk.css

517b698cd6e6a768ede1e815805d12f98cc2656f_CSS.5dec253f.chunk.css

201 ms

index.c1699b63.chunk.css

index.c1699b63.chunk.css

199 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

294 ms

webpack-31f9a6d78fb21d9fee29.js

webpack-31f9a6d78fb21d9fee29.js

227 ms

framework.96fc72e2b396a6356f13.js

framework.96fc72e2b396a6356f13.js

433 ms

commons.1a34b39f3adf48ec42bd.js

commons.1a34b39f3adf48ec42bd.js

228 ms

main-95e9c1aac17b95adc25c.js

main-95e9c1aac17b95adc25c.js

315 ms

40d6ad66d48ad3a0db3a3c727eb4e4d8f559b4ae.795292650b1fbdd601e3.js

40d6ad66d48ad3a0db3a3c727eb4e4d8f559b4ae.795292650b1fbdd601e3.js

314 ms

styles.370d8187730ca835e9aa.js

styles.370d8187730ca835e9aa.js

314 ms

_app-694243fb39a85b98f900.js

_app-694243fb39a85b98f900.js

315 ms

fa83b8e1d3a8cfde2eaa8b610df1d037db79f9ca.dc031898181c3e9b9a8a.js

fa83b8e1d3a8cfde2eaa8b610df1d037db79f9ca.dc031898181c3e9b9a8a.js

431 ms

517b698cd6e6a768ede1e815805d12f98cc2656f.d21d238bc66de51fd5b6.js

517b698cd6e6a768ede1e815805d12f98cc2656f.d21d238bc66de51fd5b6.js

468 ms

517b698cd6e6a768ede1e815805d12f98cc2656f_CSS.210d3c80a2b0e2401248.js

517b698cd6e6a768ede1e815805d12f98cc2656f_CSS.210d3c80a2b0e2401248.js

466 ms

6b60f3a323705ee7d2ee7c5413d600c45ca2d4ec.c51df37c837437b87446.js

6b60f3a323705ee7d2ee7c5413d600c45ca2d4ec.c51df37c837437b87446.js

472 ms

index-2229f4292fc0feefe8cb.js

index-2229f4292fc0feefe8cb.js

467 ms

_buildManifest.js

_buildManifest.js

475 ms

_ssgManifest.js

_ssgManifest.js

476 ms

by-apryse.svg

by-apryse.svg

484 ms

react.svg

react.svg

488 ms

angular.svg

angular.svg

489 ms

vue.svg

vue.svg

493 ms

svelte.svg

svelte.svg

493 ms

blazor.svg

blazor.svg

494 ms

manual.svg

manual.svg

550 ms

npm.svg

npm.svg

557 ms

homepage-hero-illustration.png

homepage-hero-illustration.png

617 ms

review-doc-duo.svg

review-doc-duo.svg

563 ms

add-annotations-duo.svg

add-annotations-duo.svg

558 ms

customize-duo.svg

customize-duo.svg

563 ms

distance-duo.svg

distance-duo.svg

610 ms

bxs-timer.svg

bxs-timer.svg

617 ms

bx-support.svg

bx-support.svg

620 ms

bx-layout.svg

bx-layout.svg

624 ms

software.svg

software.svg

625 ms

education.svg

education.svg

673 ms

rp.gif

rp.gif

17 ms

t2_gnl253md_telemetry

t2_gnl253md_telemetry

8 ms

munchkin.js

munchkin.js

3 ms

visitWebPage

visitWebPage

86 ms

modules.84f80a92c39bbd76564a.js

modules.84f80a92c39bbd76564a.js

21 ms

fintech.svg

fintech.svg

546 ms

healthcare.svg

healthcare.svg

489 ms

insight.min.js

insight.min.js

29 ms

Sen-Regular.woff

Sen-Regular.woff

476 ms

Sen-Bold.woff

Sen-Bold.woff

534 ms

js

js

84 ms

legal.svg

legal.svg

465 ms

insight.old.min.js

insight.old.min.js

3 ms

cta_home.png

cta_home.png

494 ms

pdfjsexpress%20logo_gray%20145x24px.svg

pdfjsexpress%20logo_gray%20145x24px.svg

435 ms

twitter%20darkbrown2.svg

twitter%20darkbrown2.svg

438 ms

bxl-youtube%20darkbrown2.svg

bxl-youtube%20darkbrown2.svg

457 ms

bxl-linkedin%20darkbrown2.svg

bxl-linkedin%20darkbrown2.svg

450 ms

cta-background.jpg

cta-background.jpg

409 ms

Accessibility Review

pdfjs.express accessibility score

96

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

pdfjs.express 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

pdfjs.express SEO score

98

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 Pdfjs.express 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 Pdfjs.express 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

pdfjs.express

Open Graph data is detected on the main page of PDF Js. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: