90.7 sec in total
229 ms
68 sec
22.5 sec
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Visit zscaler.comWe analyzed Zscaler.com page load time and found that the first response time was 229 ms and then it took 90.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 53 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
zscaler.com performance score
name
value
score
weighting
Value4.1 s
22/100
10%
Value9.7 s
0/100
25%
Value9.7 s
10/100
10%
Value3,270 ms
2/100
30%
Value0.133
81/100
15%
Value19.4 s
2/100
10%
229 ms
1036 ms
3604 ms
3516 ms
4296 ms
Our browser made a total of 79 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Zscaler.com, 28% (22 requests) were made to Cdn-3.zscaler.com and 16% (13 requests) were made to Cdn-4.zscaler.com. The less responsive or slowest element that took the longest time to load (55.1 sec) relates to the external source Cdn-3.zscaler.com.
Page size can be reduced by 2.9 MB (44%)
6.5 MB
3.6 MB
In fact, the total size of Zscaler.com main page is 6.5 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. 25% of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.
Potential reduce by 131.0 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 131.0 kB or 86% of the original size.
Potential reduce by 301.0 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. Zscaler images are well optimized though.
Potential reduce by 1.4 MB
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 1.4 MB or 71% of the original size.
Potential reduce by 1.1 MB
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. Zscaler.com needs all CSS files to be minified and compressed as it can save up to 1.1 MB or 87% of the original size.
Number of requests can be reduced by 9 (38%)
24
15
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zscaler. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
zscaler.com
229 ms
www.zscaler.com
1036 ms
css_QcNSdhofj05sXFi6bRsCp2hbKXNJYBRKfttBEAF8r6o.css
3604 ms
css_VTeQX1K-U-ZVbHXlmjJpWSIY-Ls2ukzK4O-71OMF5LQ.css
3516 ms
css_xODDLHewvzvBf9OYlbHb27wQtdlxDGC_13NtkMLfX1A.css
4296 ms
font-awesome.min.css
3172 ms
css_QYfy6RPd5yIgaKwh6SeYQpF9AeppGj_b0Nk84Vb07gw.css
4296 ms
css
3772 ms
js_p2Pm92U0xNKrBps4v5uAeOIq9sGMPp8zPpZGieWq8eo.js
4240 ms
js_D513xrHxkFzR3xMs-U1B-okOiPuXCy6MX1kwfrKN5Ls.js
3753 ms
js_2yZBMCwZ8Ebvr--3TU-jwmQ1YXTIH9MvXv4nEbJCL68.js
4122 ms
js_5ci1FGcCAI3jQw3XROeeaSXnNXXvDkuWxdr5zXF8k-I.js
7288 ms
js_OTdL_00eEtQq3wzsUAHLDYwgtcHpzbgUFYeJRcQf8f8.js
3751 ms
tracking.js
54778 ms
w.js
54778 ms
zscaler-logo.png
2382 ms
zscaler-logo-white.png
2417 ms
zscaler-thrive-die-16.9.jpg
2376 ms
zscaler-platform-internetApps.png
2375 ms
zscaler-platform-zcloud.png
6067 ms
zscaler-double-chevron-leftside.svg
54753 ms
british-american-tobacco.png
54583 ms
avery-dennison.png
54648 ms
zscaler-quote-beamSuntory.png
54648 ms
zscaler-promo-forrester.jpg
54647 ms
zscaler-laptop-office365.png
54648 ms
zscaler-feature-gartnermq-2017.jpg
5818 ms
zscaler-feature-threatlabz.png
54648 ms
lab-corp.png
54647 ms
michelin.png
54647 ms
customer-logo-fugro.png
55002 ms
customer-logo-johnson-controls.png
55002 ms
lazboy.png
55002 ms
fb-icon.png
55002 ms
in-icon.png
55002 ms
youtube.png
55002 ms
blog.png
55002 ms
zscaler-stickynav-logo.png
5894 ms
customer-logo-beam-suntory.png
5837 ms
customer-logo-avaya.png
5808 ms
astrazeneca.png
5732 ms
societe-generale.png
54917 ms
nbc.png
54917 ms
zscaler-promo-scawards.jpg
54917 ms
twitter-icon.png
55115 ms
zscaler-outbound-gateway.png
5730 ms
zscaler-double-chevron-rightside.svg
55114 ms
zscaler-inbound-gateway.png
55114 ms
abn-amro-bank.png
55115 ms
united.png
55115 ms
schneider-electric.png
55115 ms
akzo-nobel.png
55114 ms
auto-nation.png
55114 ms
zscaler-promo-gartner-2017.jpg
55115 ms
zscaler-footer-breakfree-badge.jpg
55115 ms
zscaler-feature-cloud100.jpg
5806 ms
zscaler-securityPreview-graphic.png
5660 ms
philips.png
55047 ms
zscaler-videoBackground-sethMcAllister.jpg
55047 ms
gtm.js
55023 ms
zscaler-homeHero-image03-IoT.jpg
53007 ms
zscaler-icon-event.svg
53007 ms
zscaler-icon-feature.svg
53007 ms
zscaler-securityPreview-background.jpg
53006 ms
zscaler-icon-shield.svg
53006 ms
zscaler-videoBackground-sethMcAllister%402x.jpg
53117 ms
zscaler-quoteMark-beamSuntory-left.svg
53118 ms
zscaler-quoteMark-beamSuntory-right.svg
53117 ms
quotemark-left-orange.svg
53117 ms
quotemark-right-orange.svg
53117 ms
ODelI1aHBYDBqgeIAH2zlNzbP97U9sKh0jjxbPbfOKg.ttf
49738 ms
toadOcfmlt9b38dHJxOBGMw1o1eFRj7wYC6JbISqOjY.ttf
49757 ms
toadOcfmlt9b38dHJxOBGNNE-IuDiR70wI4zXaKqWCM.ttf
49757 ms
glyphicons-halflings-regular.woff
49757 ms
fpTVHK8qsXbIeTHTrnQH6EfrksRSinjQUrHtm_nW72g.ttf
49758 ms
M2Jd71oPJhLKp0zdtTvoM0DauxaEVho0aInXGvhmB4k.ttf
49729 ms
fpTVHK8qsXbIeTHTrnQH6Iue0YgdIF4L_q7PS4yTQOQ.ttf
49729 ms
munchkin.js
49068 ms
sf14g.js
49068 ms
zscaler.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
[role]s are not contained by their required parent element
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
Buttons do not have an accessible name
Links do not have a discernible name
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
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
zscaler.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
zscaler.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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zscaler.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 Zscaler.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.
zscaler.com
Open Graph data is detected on the main page of Zscaler. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: