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deltatherm.com screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 0

    Best Practices

  • 93

    SEO

    Google-friendlier than
    84% of websites

deltatherm.com

Industriekühlung | Temperieranlagen | Heizen und Kühlen - DELTATHERM

Page Load Speed

3 sec in total

First Response

322 ms

Resources Loaded

2.5 sec

Page Rendered

115 ms

deltatherm.com screenshot

About Website

Click here to check amazing DELTATHERM content. Otherwise, check out these important facts you probably never knew about deltatherm.com

DELTATHERM® Industrial cooling and heating. Industrielle Kühlsysteme und Temperieranlagen. Seit 50 Jahren Partner der Industrie.

Visit deltatherm.com

Key Findings

We analyzed Deltatherm.com page load time and found that the first response time was 322 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

deltatherm.com performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value19.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value55.0 s

0/100

25%

SI (Speed Index)

Value29.1 s

0/100

10%

TBT (Total Blocking Time)

Value6,330 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value41.9 s

0/100

10%

Network Requests Diagram

deltatherm.com

322 ms

www.deltatherm.com

1322 ms

index_style.css

105 ms

ga.js

7 ms

t.js

496 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 43% of them (3 requests) were addressed to the original Deltatherm.com, 29% (2 requests) were made to Google-analytics.com and 14% (1 request) were made to Code.etracker.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Deltatherm.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.0 kB (26%)

Content Size

27.3 kB

After Optimization

20.3 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Deltatherm.com main page is 27.3 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. Only 10% of websites need less resources to load. Javascripts take 17.2 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 7.0 kB

  • Original 10.1 kB
  • After minification 9.6 kB
  • After compression 3.1 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 7.0 kB or 69% of the original size.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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.

CSS Optimization

-9%

Potential reduce by 2 B

  • Original 22 B
  • After minification 20 B
  • After compression 20 B

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. Deltatherm.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DELTATHERM. According to our analytics all requests are already optimized.

Network Requests Diagram

deltatherm.com

deltatherm.com

322 ms

www.deltatherm.com

www.deltatherm.com

1322 ms

index_style.css

index_style.css

105 ms

ga.js

ga.js

7 ms

t.js

t.js

496 ms

__utm.gif

__utm.gif

11 ms

cnt.php

cnt.php

262 ms

Accessibility Review

deltatherm.com accessibility score

71

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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 IDs are not unique

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

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

SEO Factors

deltatherm.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

Image elements do not have [alt] attributes

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

    DE

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Deltatherm.com can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Deltatherm.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

deltatherm.com

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