Tools & Wizards About Us

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

exfo.com

Network test, monitoring and analytics experts | EXFO

Page Load Speed

1.6 sec in total

First Response

148 ms

Resources Loaded

909 ms

Page Rendered

546 ms

About Website

Click here to check amazing EXFO content for Canada. Otherwise, check out these important facts you probably never knew about exfo.com

EXFO’s unique blend of equipment, software and services accelerate digital transformations related to fiber, 4G/LTE and 5G deployments

Visit exfo.com

Key Findings

We analyzed Exfo.com page load time and found that the first response time was 148 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

exfo.com performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

88/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

6/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

www.exfo.com

148 ms

gtm.js

141 ms

main-navigation.54a2fbb6.css

62 ms

main.3f059182.css

44 ms

cookie-bot.5d9be5da.css

63 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 63% of them (35 requests) were addressed to the original Exfo.com, 11% (6 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Munchkin.marketo.net. The less responsive or slowest element that took the longest time to load (457 ms) belongs to the original domain Exfo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 313.0 kB (24%)

Content Size

1.3 MB

After Optimization

993.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Exfo.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. 65% of websites need less resources to load. Images take 807.4 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 224.7 kB

  • Original 250.1 kB
  • After minification 187.7 kB
  • After compression 25.4 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. This page needs HTML code to be minified as it can gain 62.4 kB, which is 25% 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 224.7 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 807.4 kB
  • After minification 807.4 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. EXFO images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 88.2 kB

  • Original 223.0 kB
  • After minification 223.0 kB
  • After compression 134.8 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 88.2 kB or 40% of the original size.

CSS Optimization

-1%

Potential reduce by 165 B

  • Original 25.8 kB
  • After minification 25.8 kB
  • After compression 25.6 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. Exfo.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (54%)

Requests Now

48

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of EXFO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

exfo.com accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA IDs are not unique

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

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

High

Form elements do not have associated labels

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

exfo.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

exfo.com SEO score

93

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

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