63 / 100
Should Fix:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
- https://deltatec-computer-aachen.de/assets/js/a5e00616c3fe.js
- https://deltatec-computer-aachen.de/assets/jquery/ui/1.11.4/jquery-ui.min.js
- https://deltatec-computer-aachen.de/assets/jquery/colorbox/1.6.1/js/colorbox.min.js
- https://deltatec-computer-aachen.de/assets/jquery/mediaelement/2.21.2/js/mediaelement-and-player.min.js
- https://deltatec-computer-aachen.de/assets/jquery/tablesorter/2.0.5/js/tablesorter.js
- https://deltatec-computer-aachen.de/assets/js/56f74f8d3b1d.js
Optimize CSS Delivery of the following:
- https://fonts.googleapis.com/css?family=Open+Sans:400,300,700%7CSource+Sans+Pro:300,400,700%7CPlayfair+Display:400italic,700italic
- https://deltatec-computer-aachen.de/system/modules/pct_customelements/assets/font-awesome/4.7.0/css/font-awesome.min.css
- https://deltatec-computer-aachen.de/assets/css/8855fdf8d88f.css
- https://deltatec-computer-aachen.de/assets/css/8ec398b55ad1.css
- https://deltatec-computer-aachen.de/files/cto_layout/themedesigner/css/layout_eclipse_cloudtel_deltatec_ver_8.css?1529925776
- https://deltatec-computer-aachen.de/files/cto_layout/css/customize.css
Show how to fix
Consider Fixing:
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 14.8KiB (69% reduction).
- Compressing https://deltatec-computer-aachen.de/files/bilder/partner/macrium-logo.svg could save 13.6KiB (72% reduction).
- Compressing https://deltatec-computer-aachen.de/files/cto_layout/img/flags/gb.svg could save 853B (55% reduction).
- Compressing https://deltatec-computer-aachen.de/files/cto_layout/img/flags/pl.svg could save 223B (35% reduction).
- Compressing https://deltatec-computer-aachen.de/files/cto_layout/img/flags/de.svg could save 207B (34% reduction).
Show how to fix
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
- https://www.google-analytics.com/gtm/js?id=GTM-58MHXDB&t=gtm2&cid=486048548.1529958814 (15 minutes)
- https://www.googletagmanager.com/gtm.js?id=GTM-PSKVHPW (15 minutes)
- https://www.google-analytics.com/analytics.js (2 hours)
Show how to fix
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 22.4KiB (14% reduction).
- Minifying https://deltatec-computer-aachen.de/assets/js/a5e00616c3fe.js could save 15.2KiB (14% reduction) after compression.
- Minifying https://deltatec-computer-aachen.de/assets/js/56f74f8d3b1d.js could save 7.2KiB (14% reduction) after compression.
Show how to fix
Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
- Only about 26% of the final above-the-fold content could be rendered with the full HTML response.
- Click to see the screenshot with only the HTML response: snapshot:12
Show how to fix
5 Passed Rules
100 / 100
5 Passed Rules
Show details
Avoid plugins
Your page does not appear to use plugins, which would prevent content from being usable on many platforms. Learn more about the importance of avoiding plugins.
Configure the viewport
Your page specifies a viewport matching the device's size, which allows it to render properly on all devices. Learn more about configuring viewports.
Size content to viewport
The contents of your page fit within the viewport. Learn more about sizing content to the viewport.
Size tap targets appropriately
All of your page's links/buttons are large enough for a user to easily tap on a touchscreen. Learn more about sizing tap targets appropriately.
Use legible font sizes
The text on your page is legible. Learn more about using legible font sizes.
83 / 100
Should Fix:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
- https://deltatec-computer-aachen.de/assets/js/a5e00616c3fe.js
- https://maps.googleapis.com/maps/api/js?v=3.exp&key=AIzaSyA5OMDstQqR9WQku7YuMCqoUgc6BvlvJPs
Optimize CSS Delivery of the following:
- https://fonts.googleapis.com/css?family=Open+Sans:400,300,700%7CSource+Sans+Pro:300,400,700%7CPlayfair+Display:400italic,700italic
- https://deltatec-computer-aachen.de/system/modules/pct_customelements/assets/font-awesome/4.7.0/css/font-awesome.min.css
- https://deltatec-computer-aachen.de/assets/css/8855fdf8d88f.css
- https://deltatec-computer-aachen.de/assets/css/8ec398b55ad1.css
- https://deltatec-computer-aachen.de/files/cto_layout/themedesigner/css/layout_eclipse_cloudtel_deltatec_ver_8.css?1529885077
- https://deltatec-computer-aachen.de/files/cto_layout/css/customize.css
Show how to fix
Consider Fixing:
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 14.8KiB (69% reduction).
- Compressing https://deltatec-computer-aachen.de/files/bilder/partner/macrium-logo.svg could save 13.6KiB (72% reduction).
- Compressing https://deltatec-computer-aachen.de/files/cto_layout/img/flags/gb.svg could save 853B (55% reduction).
- Compressing https://deltatec-computer-aachen.de/files/cto_layout/img/flags/pl.svg could save 223B (35% reduction).
- Compressing https://deltatec-computer-aachen.de/files/cto_layout/img/flags/de.svg could save 207B (34% reduction).
Show how to fix
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
- https://www.google-analytics.com/gtm/js?id=GTM-58MHXDB&t=gtm2&cid=66776170.1529958819 (15 minutes)
- https://www.googletagmanager.com/gtm.js?id=GTM-PSKVHPW (15 minutes)
- https://maps.googleapis.com/maps/api/js?v=3.exp&key=AIzaSyA5OMDstQqR9WQku7YuMCqoUgc6BvlvJPs (30 minutes)
- https://www.google-analytics.com/analytics.js (2 hours)
Show how to fix
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 22.4KiB (14% reduction).
- Minifying https://deltatec-computer-aachen.de/assets/js/a5e00616c3fe.js could save 15.2KiB (14% reduction) after compression.
- Minifying https://deltatec-computer-aachen.de/assets/js/56f74f8d3b1d.js could save 7.2KiB (14% reduction) after compression.
Show how to fix
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 9.5KiB (64% reduction).
- Compressing and resizing https://deltatec-computer-aachen.de/assets/images/3/tobias-loder-7a870ec3.jpg could save 3.7KiB (65% reduction).
- Compressing and resizing https://deltatec-computer-aachen.de/assets/images/f/walter-kuepper-328a959f.jpg could save 3KiB (63% reduction).
- Compressing and resizing https://deltatec-computer-aachen.de/assets/images/f/katy-kasiske-dd38a80f.jpg could save 2.8KiB (63% reduction).
Show how to fix
5 Passed Rules
* The results are cached for 30s. If you have made changes to your page, please wait for 30s before re-running the test.
