3.3 sec in total
1.5 sec
1.6 sec
187 ms
Welcome to zos101.com homepage info - get ready to check Z OS 101 best content right away, or after learning these important things about zos101.com
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Visit zos101.comWe analyzed Zos101.com page load time and found that the first response time was 1.5 sec and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
zos101.com performance score
name
value
score
weighting
Value2.3 s
73/100
10%
Value8.6 s
1/100
25%
Value4.1 s
79/100
10%
Value1,980 ms
8/100
30%
Value0.034
100/100
15%
Value9.5 s
30/100
10%
1531 ms
140 ms
98 ms
139 ms
138 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 53% of them (18 requests) were addressed to the original Zos101.com, 18% (6 requests) were made to Googleads.g.doubleclick.net and 12% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Zos101.com.
Page size can be reduced by 58.9 kB (68%)
86.1 kB
27.2 kB
In fact, the total size of Zos101.com main page is 86.1 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. HTML takes 72.3 kB which makes up the majority of the site volume.
Potential reduce by 58.3 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 58.3 kB or 81% of the original size.
Potential reduce by 0 B
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. Z OS 101 images are well optimized though.
Potential reduce by 567 B
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. Zos101.com needs all CSS files to be minified and compressed as it can save up to 567 B or 37% of the original size.
Number of requests can be reduced by 6 (19%)
32
26
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Z OS 101. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
zos101.com
1531 ms
firewall.css
140 ms
adsbygoogle.js
98 ms
adsbygoogle.js
139 ms
show_ads.js
138 ms
show_ads_impl.js
266 ms
zrt_lookup.html
53 ms
loader.js
42 ms
branding.css
40 ms
poweredby_FFFFFF.gif
43 ms
IBM_z10_mainframe_zvm_zos_system_z.jpg
109 ms
facebook.png
181 ms
twitter.png
181 ms
new_education_degrees_news.gif
181 ms
button278.gif
180 ms
buttonA25.gif
180 ms
button292.gif
282 ms
button1E2.gif
283 ms
button303.gif
281 ms
button304.gif
283 ms
button305.gif
283 ms
button287.gif
318 ms
button306.gif
325 ms
button288.gif
326 ms
button294.gif
326 ms
button295.gif
326 ms
branding.css
25 ms
impl.20240129-10-RELEASE.es5.js
65 ms
sync
17 ms
ads
228 ms
ads
272 ms
ads
304 ms
ads
278 ms
ads
287 ms
zos101.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
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
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
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>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
zos101.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
Browser errors were logged to the console
Page has valid source maps
zos101.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zos101.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 Zos101.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.
zos101.com
Open Graph description is not detected on the main page of Z OS 101. 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: