2.6 sec in total
551 ms
1.8 sec
259 ms
Click here to check amazing Rec Sys ACM content for China. Otherwise, check out these important facts you probably never knew about recsys.acm.org
Visit recsys.acm.orgWe analyzed Recsys.acm.org page load time and found that the first response time was 551 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
recsys.acm.org performance score
name
value
score
weighting
Value2.8 s
55/100
10%
Value4.1 s
46/100
25%
Value3.0 s
94/100
10%
Value100 ms
98/100
30%
Value0.046
99/100
15%
Value4.3 s
85/100
10%
551 ms
97 ms
148 ms
83 ms
93 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 76% of them (28 requests) were addressed to the original Recsys.acm.org, 11% (4 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (885 ms) belongs to the original domain Recsys.acm.org.
Page size can be reduced by 234.9 kB (26%)
893.8 kB
658.8 kB
In fact, the total size of Recsys.acm.org main page is 893.8 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. 30% of websites need less resources to load. Images take 641.0 kB which makes up the majority of the site volume.
Potential reduce by 16.1 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 16.1 kB or 76% of the original size.
Potential reduce by 47.1 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. Rec Sys ACM images are well optimized though.
Potential reduce by 126.0 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 126.0 kB or 71% of the original size.
Potential reduce by 45.7 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. Recsys.acm.org needs all CSS files to be minified and compressed as it can save up to 45.7 kB or 83% of the original size.
Number of requests can be reduced by 26 (81%)
32
6
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rec Sys ACM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
recsys.acm.org
551 ms
wp-emoji-release.min.js
97 ms
style.css
148 ms
css
83 ms
css
93 ms
css.tipsy.css
673 ms
css.prettyPhoto.css
855 ms
css.validity.css
885 ms
recsys.acm.org
445 ms
jquery.min.js
80 ms
jquery.tipsy.js
196 ms
jquery.prettyPhoto.js
225 ms
jquery.validity.js
195 ms
jquery.cycle.all.min.js
258 ms
jquery.tabify-1.4.js
229 ms
jquery.accordion.js
258 ms
jquery.quicksearch.js
261 ms
scripts.js
291 ms
plugins.js
289 ms
wp-embed.min.js
294 ms
analytics.js
139 ms
bg-body.png
125 ms
Logo-3.png
126 ms
bg-search.png
123 ms
Boston-1000x360.png
347 ms
bg-slider.png
124 ms
facebook.png
126 ms
twitter.png
125 ms
instagram.png
127 ms
linkedin.png
128 ms
youtube.png
126 ms
s-BiyweUPV0v-yRb-cjciC3USBnSvpkopQaUR-2r7iU.ttf
22 ms
EFpQQyG9GqCrobXxL-KRMfEr6Hm6RMS0v1dtXsGir4g.ttf
31 ms
cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf
35 ms
k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf
33 ms
collect
30 ms
style-print.css
36 ms
recsys.acm.org 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Form elements do not have associated labels
recsys.acm.org 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
recsys.acm.org 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 Recsys.acm.org 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 Recsys.acm.org 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.
recsys.acm.org
Open Graph description is not detected on the main page of Rec Sys ACM. 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: