1.4 sec in total
110 ms
719 ms
557 ms
Welcome to derri-air.com homepage info - get ready to check Derri Air best content right away, or after learning these important things about derri-air.com
New technology for more comfortable bicycle seats - Bicycle seats & exercise bike seats also called bicycle saddles. Recumbents too!
Visit derri-air.comWe analyzed Derri-air.com page load time and found that the first response time was 110 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
derri-air.com performance score
name
value
score
weighting
Value1.5 s
95/100
10%
Value4.6 s
35/100
25%
Value3.4 s
89/100
10%
Value1,870 ms
9/100
30%
Value0
100/100
15%
Value4.2 s
85/100
10%
110 ms
45 ms
57 ms
43 ms
38 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 85% of them (29 requests) were addressed to the original Derri-air.com, 6% (2 requests) were made to Bicycleseats.biz and 6% (2 requests) were made to Counter.hitslink.com. The less responsive or slowest element that took the longest time to load (385 ms) relates to the external source Bicycleseats.biz.
Page size can be reduced by 83.5 kB (13%)
654.9 kB
571.4 kB
In fact, the total size of Derri-air.com main page is 654.9 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. 25% of websites need less resources to load. Images take 574.4 kB which makes up the majority of the site volume.
Potential reduce by 54.6 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 15.6 kB, which is 25% 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 54.6 kB or 86% of the original size.
Potential reduce by 27.3 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. Derri Air images are well optimized though.
Potential reduce by 1.6 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.
Number of requests can be reduced by 8 (24%)
33
25
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Derri Air. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
derri-air.com
110 ms
bkg.jpg
45 ms
top.jpg
57 ms
top-right-2.jpg
43 ms
clearspacer.gif
38 ms
lhnavtop2.jpg
42 ms
lhnavbkg.jpg
38 ms
utilities.js
385 ms
listing.js
305 ms
leftbkgcolor.jpg
43 ms
ccinfosq.jpg
46 ms
made-in-usa-logo.jpg
48 ms
red.jpg
48 ms
exercisebike-smcu.gif
49 ms
49233.jpg
121 ms
lg-pain-reliever-seat-pad-m.jpg
64 ms
2003milanolady2.jpg
66 ms
49447.jpg
67 ms
11-320.jpg
66 ms
49524.jpg
124 ms
125easyseatII.jpg
76 ms
EXDRzone-sm.jpg
81 ms
colorblue.jpg
82 ms
colorbikers-pink.jpg
82 ms
shape4.jpg
93 ms
50026-tn.jpg
97 ms
41501.jpg
128 ms
tunturipicnseat-tn.jpg
101 ms
lhnchatbutton-current.min.js
47 ms
fitness_1.jpg
109 ms
smallbutton.jpg
110 ms
bottom.gif
114 ms
statistics.asp
159 ms
track.js
202 ms
derri-air.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
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
Image elements do not have [alt] attributes
Links do not have a discernible name
derri-air.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
derri-air.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
EN
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Derri-air.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 Derri-air.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.
derri-air.com
Open Graph description is not detected on the main page of Derri Air. 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: