5.5 sec in total
132 ms
4.3 sec
971 ms
Visit ddref.com now to see the best up-to-date Ddref content and also check out these interesting facts you probably never knew about ddref.com
Discovery Designs Refrigeration's industrial refrigeration specialists conceive systems for industrial applications including design, custom pipefitting, insulation panels & full installation. Usi...
Visit ddref.comWe analyzed Ddref.com page load time and found that the first response time was 132 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
ddref.com performance score
name
value
score
weighting
Value5.1 s
8/100
10%
Value11.4 s
0/100
25%
Value17.8 s
0/100
10%
Value31,670 ms
0/100
30%
Value0.466
19/100
15%
Value43.3 s
0/100
10%
132 ms
279 ms
138 ms
221 ms
220 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 69% of them (56 requests) were addressed to the original Ddref.com, 9% (7 requests) were made to Youtube.com and 6% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Ddref.com.
Page size can be reduced by 446.5 kB (18%)
2.5 MB
2.1 MB
In fact, the total size of Ddref.com main page is 2.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 33.8 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 33.8 kB or 80% of the original size.
Potential reduce by 50.0 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. Ddref images are well optimized though.
Potential reduce by 43.8 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 43.8 kB or 32% of the original size.
Potential reduce by 318.8 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. Ddref.com needs all CSS files to be minified and compressed as it can save up to 318.8 kB or 83% of the original size.
Number of requests can be reduced by 20 (29%)
70
50
The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ddref. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
ddref.com
132 ms
www.ddref.com
279 ms
main.css
138 ms
slick-theme.css
221 ms
slick.css
220 ms
jQuery-1.9.1.min.js
402 ms
genesis.FFB.handler.1.0.js
318 ms
Sitewide.js
295 ms
slick.js
352 ms
CustomHome.js
331 ms
js
112 ms
GoogleAnalyticsTracking.js
330 ms
css
144 ms
css
155 ms
f2W5jOY_XxI
601 ms
4NaQBFHqujU
609 ms
navBG.jpg
553 ms
discoveryDesignsB.png
553 ms
icicle-overlay.png
606 ms
barOverlay.png
552 ms
discoveryDesignsSlideOne.jpg
577 ms
iciclesOne2.png
550 ms
iciclesTwo2.png
580 ms
discoveryDesignsSlideTwo.jpg
624 ms
designBg.jpg
594 ms
designOverlay.png
578 ms
designService.png
600 ms
installationBg.jpg
605 ms
installationOverlay.png
601 ms
installationService.png
628 ms
insulationPanelsBg.jpg
624 ms
insulationPanelsOverlay.png
625 ms
insulationPanelsService.png
625 ms
pipefittingBg.jpg
760 ms
pipefittingOverlay.png
808 ms
pipefittingService.png
838 ms
discoveryDesignsServiceGallery.jpg
838 ms
Industrial-Refrigeration.jpg
837 ms
yellow-triangle.png
837 ms
h1Arrow.png
836 ms
Ammonia-Refrigeration.jpg
1073 ms
CO2-Refrigeration.jpg
1073 ms
Check-Mark.png
1070 ms
Industrial-System-BTN.png
1071 ms
Industrial-Compressor.jpg
1072 ms
Condenser-Refrigeration.jpg
1070 ms
IndustrialRefrigerationCo.jpg
1814 ms
RefrigeratingEngineersTec.jpg
1796 ms
InternationalInstituteofA.jpg
1796 ms
InternationalAssociationo.jpg
1796 ms
RefrigerationServiceEngin.jpg
1814 ms
www-player.css
224 ms
www-embed-player.js
330 ms
base.js
541 ms
fetch-polyfill.js
294 ms
NorthAmericanSustainableR.jpg
1272 ms
AmericanSocietyofHeatingR.jpg
1274 ms
footerBg.jpg
1274 ms
discoveryDesigns.png
1250 ms
ajax-loader.gif
1252 ms
js
179 ms
js
258 ms
hv-WlzNxIFoO84YdfUsTOQ.ttf
263 ms
hv-TlzNxIFoO84YddfA2KTdYVw.ttf
800 ms
hv-TlzNxIFoO84Yddew1KTdYVw.ttf
801 ms
robotoslab-regular-webfont.woff
1001 ms
robotoslab-bold-webfont.woff
1001 ms
slick.woff
1003 ms
analytics.js
636 ms
ad_status.js
679 ms
collect
531 ms
collect
518 ms
id
508 ms
VM1LbcxuQZ7urdjSm15-Kft2IdlldgxYJTjOL3p1Mjw.js
379 ms
embed.js
186 ms
slick.ttf
122 ms
Create
533 ms
Create
635 ms
KFOlCnqEu92Fr1MmEU9fBBc9.ttf
148 ms
KFOmCnqEu92Fr1Mu4mxP.ttf
150 ms
slick.svg
70 ms
ddref.com accessibility score
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
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<frame> or <iframe> elements do not have a title
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
<html> element does not have a [lang] attribute
ddref.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
ddref.com SEO score
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ddref.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 Ddref.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.
ddref.com
Open Graph description is not detected on the main page of Ddref. 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: