Tools & Wizards About Us
linkwitzlab.com screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

linkwitzlab.com

Linkwitz Lab - Loudspeaker Design

Page Load Speed

2.4 sec in total

First Response

187 ms

Resources Loaded

1.2 sec

Page Rendered

996 ms

linkwitzlab.com screenshot

About Website

Visit linkwitzlab.com now to see the best up-to-date Linkwitz Lab content for United States and also check out these interesting facts you probably never knew about linkwitzlab.com

Design and consultation in electro-acoustics. Fundamental concepts of sound reproduction in rooms. Detailed design information for DIY construction of a subwoofer and an open-baffle speaker with excep...

Visit linkwitzlab.com

Key Findings

We analyzed Linkwitzlab.com page load time and found that the first response time was 187 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

linkwitzlab.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

65/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

88/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value12,570 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.269

45/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

linkwitzlab.com

187 ms

banner-1.gif

86 ms

lxmini-3b.jpg

123 ms

lxmini2b.jpg

124 ms

lxmini-1b.jpg

122 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 81% of them (29 requests) were addressed to the original Linkwitzlab.com, 6% (2 requests) were made to Count.carrierzone.com and 6% (2 requests) were made to Cdn.clustrmaps.com. The less responsive or slowest element that took the longest time to load (480 ms) relates to the external source Clustrmaps.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 799.4 kB (44%)

Content Size

1.8 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Linkwitzlab.com main page is 1.8 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 526.2 kB

  • Original 610.3 kB
  • After minification 607.4 kB
  • After compression 84.1 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. 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 526.2 kB or 86% of the original size.

Image Optimization

-18%

Potential reduce by 192.4 kB

  • Original 1.1 MB
  • After minification 892.9 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. Obviously, Linkwitz Lab needs image optimization as it can save up to 192.4 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 80.8 kB

  • Original 139.3 kB
  • After minification 123.1 kB
  • After compression 58.4 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 80.8 kB or 58% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

35

After Optimization

35

  • AJAX
  • Images
  • JavaScript

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Linkwitz Lab. According to our analytics all requests are already optimized.

Network Requests Diagram

linkwitzlab.com

linkwitzlab.com

187 ms

banner-1.gif

banner-1.gif

86 ms

lxmini-3b.jpg

lxmini-3b.jpg

123 ms

lxmini2b.jpg

lxmini2b.jpg

124 ms

lxmini-1b.jpg

lxmini-1b.jpg

122 ms

LXstudio-2.jpg

LXstudio-2.jpg

122 ms

LX521-baffles100.jpg

LX521-baffles100.jpg

126 ms

LX521-woofer100c.jpg

LX521-woofer100c.jpg

165 ms

LX521-top100.jpg

LX521-top100.jpg

178 ms

orion-4f.jpg

orion-4f.jpg

175 ms

IMG_1065c100s.jpg

IMG_1065c100s.jpg

175 ms

Pluto-upper-c.jpg

Pluto-upper-c.jpg

180 ms

module484-100.jpg

module484-100.jpg

180 ms

bg-notepaper1.gif

bg-notepaper1.gif

336 ms

sl3-100.jpg

sl3-100.jpg

229 ms

bg-sand4.gif

bg-sand4.gif

282 ms

L1000613-c.jpg

L1000613-c.jpg

277 ms

L1000608-c.jpg

L1000608-c.jpg

253 ms

L1000603-c.jpg

L1000603-c.jpg

249 ms

LXmini-1.jpg

LXmini-1.jpg

273 ms

LX521_front500.jpg

LX521_front500.jpg

333 ms

PC270033-web.jpg

PC270033-web.jpg

331 ms

pluto-2-orange.jpg

pluto-2-orange.jpg

293 ms

May0218-1d.jpg

May0218-1d.jpg

307 ms

stereo-mic2_sm.jpg

stereo-mic2_sm.jpg

275 ms

sphere_mic_sm.jpg

sphere_mic_sm.jpg

308 ms

wireless2.jpg

wireless2.jpg

308 ms

sl-london07.JPG

sl-london07.JPG

329 ms

LL-green-red-dot-32.gif

LL-green-red-dot-32.gif

311 ms

map.js

map.js

209 ms

count.js

count.js

189 ms

ctin.php

ctin.php

114 ms

jquery.min.js

jquery.min.js

63 ms

widget_call_home.js

widget_call_home.js

480 ms

map_v2_loading.png

map_v2_loading.png

138 ms

logo4-small.png

logo4-small.png

142 ms

Accessibility Review

linkwitzlab.com accessibility score

54

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

linkwitzlab.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

linkwitzlab.com SEO score

67

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Linkwitzlab.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 Linkwitzlab.com main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

linkwitzlab.com

Open Graph description is not detected on the main page of Linkwitz Lab. 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: