Access krell-engineering.com. Krell Engineering - design of ultrasonic resonators, ultrasonic horns

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

krell-engineering.com

188 ms

home_cmp_krell3100_gbtn.gif

78 ms

sitemap.htm_cmp_krell3100_gbtn.gif

130 ms

whats_new.htm_cmp_krell3100_gbtn.gif

129 ms

krinfo01.htm_cmp_krell3100_gbtn.gif

131 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Krell-engineering.com and no external sources were called. The less responsive or slowest element that took the longest time to load (209 ms) belongs to the original domain Krell-engineering.com.

Content Size

11.6 kB

After Optimization

2.6 kB

In fact, the total size of Krell-engineering.com main page is 11.6 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. HTML takes 11.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 9.0 kB

Original 11.6 kB
After minification 10.0 kB
After compression 2.6 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 1.6 kB, which is 14% 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 9.0 kB or 77% of the original size.

Requests Now

After Optimization

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

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

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

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.

High

Image elements do not have [alt] attributes

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Krell-engineering.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Krell-engineering.com main page’s claimed encoding is . 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

Open Graph description is not detected on the main page of Krell Engineering. 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: