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rosler.com screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

rosler.com

Home - Rösler Group

Page Load Speed

5.8 sec in total

First Response

311 ms

Resources Loaded

5.2 sec

Page Rendered

204 ms

rosler.com screenshot

About Website

Click here to check amazing Rosler content for Turkey. Otherwise, check out these important facts you probably never knew about rosler.com

Rösler offering the complete range of surface finishing solutions, from a single source. Contact us today. +49 9533 924-0

Visit rosler.com

Key Findings

We analyzed Rosler.com page load time and found that the first response time was 311 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

rosler.com performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.4 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value5,940 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.365

29/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

rosler.com

311 ms

2792 ms

style.css

201 ms

stylesheet_130062facc.css

301 ms

lightwindow.css

203 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 96% of them (53 requests) were addressed to the original Rosler.com, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Rosler.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 604.4 kB (45%)

Content Size

1.3 MB

After Optimization

745.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rosler.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. 25% of websites need less resources to load. Javascripts take 622.9 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 47.0 kB

  • Original 56.8 kB
  • After minification 51.2 kB
  • After compression 9.9 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 47.0 kB or 83% of the original size.

Image Optimization

-3%

Potential reduce by 18.9 kB

  • Original 574.9 kB
  • After minification 556.1 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. Rosler images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 458.6 kB

  • Original 622.9 kB
  • After minification 523.1 kB
  • After compression 164.4 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 458.6 kB or 74% of the original size.

CSS Optimization

-84%

Potential reduce by 80.0 kB

  • Original 94.8 kB
  • After minification 66.8 kB
  • After compression 14.7 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. Rosler.com needs all CSS files to be minified and compressed as it can save up to 80.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (52%)

Requests Now

52

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rosler. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rosler.com

rosler.com

311 ms

2792 ms

style.css

style.css

201 ms

stylesheet_130062facc.css

stylesheet_130062facc.css

301 ms

lightwindow.css

lightwindow.css

203 ms

css-default.css

css-default.css

205 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

515 ms

jquery.cycle.all-3.0.3.min.js

jquery.cycle.all-3.0.3.min.js

297 ms

jquery.easing-1.3.js

jquery.easing-1.3.js

297 ms

l5.js

l5.js

300 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

406 ms

lightbox.js

lightbox.js

395 ms

easySlider1.7.js

easySlider1.7.js

399 ms

slider.js

slider.js

396 ms

html5shiv.js

html5shiv.js

401 ms

javascript_4e4e8dec17.js

javascript_4e4e8dec17.js

492 ms

css-normalize.css

css-normalize.css

497 ms

css-text.css

css-text.css

497 ms

css-layout.css

css-layout.css

600 ms

slightbox.css

slightbox.css

504 ms

prototype.1.7.0.yui.js

prototype.1.7.0.yui.js

899 ms

scriptaculous.js

scriptaculous.js

512 ms

lightbox.2.0.5.yui.js

lightbox.2.0.5.yui.js

513 ms

prototype.js

prototype.js

853 ms

scriptaculous.js

scriptaculous.js

522 ms

lightwindow.js

lightwindow.js

715 ms

analytics.js

analytics.js

20 ms

collect

collect

25 ms

effects.js

effects.js

109 ms

builder.js

builder.js

103 ms

effects.js

effects.js

108 ms

l1.png

l1.png

106 ms

logo_roesler.jpg

logo_roesler.jpg

103 ms

searchButton.gif

searchButton.gif

107 ms

80-one-of-the-biggest-shot-blast-systems-in-the-worldblast-cleaning-of-castings-weighing-up-to-250-metric-tons-ro.jpg

80-one-of-the-biggest-shot-blast-systems-in-the-worldblast-cleaning-of-castings-weighing-up-to-250-metric-tons-ro.jpg

405 ms

roesler-the-benchmark-in-consumableswith-over-8000-different-types-of-consumables-in-our-range-ro.jpg

roesler-the-benchmark-in-consumableswith-over-8000-different-types-of-consumables-in-our-range-ro.jpg

219 ms

long-life-turbinesextreme-wear-protection-and-significantly-increased-equipment-uptimes-ro.jpg

long-life-turbinesextreme-wear-protection-and-significantly-increased-equipment-uptimes-ro.jpg

338 ms

precision-processes-for-the-automotive-industryengine-gear-and-transmission-parts-ro.jpg

precision-processes-for-the-automotive-industryengine-gear-and-transmission-parts-ro.jpg

317 ms

special-processes-for-implant-finishing-and-medical-devicessuper-polished-finishes-as-low-as-ra-0-02-mm-ro.jpg

special-processes-for-implant-finishing-and-medical-devicessuper-polished-finishes-as-low-as-ra-0-02-mm-ro.jpg

332 ms

precision-technology-for-all-kind-of-surfacesmachines-media-and-compound-from-our-own-production-ro.jpg

precision-technology-for-all-kind-of-surfacesmachines-media-and-compound-from-our-own-production-ro.jpg

337 ms

vibratory-finishing-barrelling-mass-finishing-te.jpg

vibratory-finishing-barrelling-mass-finishing-te.jpg

320 ms

teaser-halle-09-te.jpg

teaser-halle-09-te.jpg

424 ms

teaser-labor-09-te.jpg

teaser-labor-09-te.jpg

428 ms

teaser-zug-09-te.jpg

teaser-zug-09-te.jpg

439 ms

news-ne-3.jpg

news-ne-3.jpg

446 ms

teaser-flugzeug-09-te.jpg

teaser-flugzeug-09-te.jpg

448 ms

image-video-roesler-finding-a-better-way-im.jpg

image-video-roesler-finding-a-better-way-im.jpg

515 ms

grindtec-2016-Gr.png

grindtec-2016-Gr.png

527 ms

youtube-p4-1.jpg

youtube-p4-1.jpg

529 ms

facebook-fb0.jpg

facebook-fb0.jpg

537 ms

linkedin-li-1.jpg

linkedin-li-1.jpg

547 ms

youtube-tu0.jpg

youtube-tu0.jpg

551 ms

druck.css

druck.css

105 ms

controller.png

controller.png

105 ms

black-70.png

black-70.png

461 ms

Accessibility Review

rosler.com accessibility score

71

Accessibility Issues

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

Image elements do not have [alt] attributes

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.

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

rosler.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

rosler.com SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rosler.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 Rosler.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

rosler.com

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