Tools & Wizards About Us

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

f2labs.com

Product Compliance & Certification Testing Services - Product Testing Lab | F2 Labs

Page Load Speed

2.4 sec in total

First Response

307 ms

Resources Loaded

1.5 sec

Page Rendered

581 ms

About Website

Click here to check amazing F2 Labs content for United States. Otherwise, check out these important facts you probably never knew about f2labs.com

F2 Labs is an independent, 3rd party lab providing product compliance and certification testing services for FCC, FDA, ISED, CE, UL, and CSA standards. Request a quote today.

Visit f2labs.com

Key Findings

We analyzed F2labs.com page load time and found that the first response time was 307 ms and then it took 2.1 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

f2labs.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value19.6 s

2/100

10%

Network Requests Diagram

f2labs.com

307 ms

gtm.js

76 ms

jquery.min.js

98 ms

jquery-migrate.min.js

155 ms

cookie-law-info-public.js

162 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 96% of them (49 requests) were addressed to the original F2labs.com, 2% (1 request) were made to Googletagmanager.com and 2% (1 request) were made to Wsmcdn.audioeye.com. The less responsive or slowest element that took the longest time to load (525 ms) belongs to the original domain F2labs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 403.7 kB (22%)

Content Size

1.9 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of F2labs.com main page is 1.9 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 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 403.5 kB

  • Original 469.0 kB
  • After minification 455.6 kB
  • After compression 65.5 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. 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 403.5 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 107 B

  • Original 1.4 MB
  • After minification 1.4 MB

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. F2 Labs images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 59 B

  • Original 531 B
  • After minification 531 B
  • After compression 472 B

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 59 B or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (64%)

Requests Now

42

After Optimization

15

  • Images
  • JavaScript

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of F2 Labs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

f2labs.com accessibility score

82

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-*] attributes do not match their roles

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.

Best Practices

f2labs.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

SEO Factors

f2labs.com SEO score

83

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 F2labs.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 F2labs.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 F2 Labs. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: