2 sec in total
178 ms
1.2 sec
538 ms
Visit c25k.com now to see the best up-to-date C25K content for United States and also check out these interesting facts you probably never knew about c25k.com
C25K has been designed to get just about anyone from the couch to running 5 kilometers or 30 minutes in just 9 weeks.
Visit c25k.comWe analyzed C25k.com page load time and found that the first response time was 178 ms and then it took 1.8 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.
c25k.com performance score
name
value
score
weighting
Value3.1 s
46/100
10%
Value4.0 s
49/100
25%
Value4.9 s
65/100
10%
Value3,190 ms
2/100
30%
Value0.001
100/100
15%
Value12.5 s
14/100
10%
178 ms
75 ms
8 ms
24 ms
61 ms
Our browser made a total of 71 requests to load all elements on the main page. We found that 10% of them (7 requests) were addressed to the original C25k.com, 11% (8 requests) were made to Static.xx.fbcdn.net and 10% (7 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (352 ms) relates to the external source Staticxx.facebook.com.
Page size can be reduced by 66.4 kB (27%)
245.9 kB
179.6 kB
In fact, the total size of C25k.com main page is 245.9 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. 60% of websites need less resources to load. Images take 127.5 kB which makes up the majority of the site volume.
Potential reduce by 40.6 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 6.6 kB, which is 12% 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 40.6 kB or 73% of the original size.
Potential reduce by 2.5 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. C25K images are well optimized though.
Potential reduce by 18.3 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 18.3 kB or 32% of the original size.
Potential reduce by 4.9 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. C25k.com needs all CSS files to be minified and compressed as it can save up to 4.9 kB or 84% of the original size.
Number of requests can be reduced by 36 (55%)
66
30
The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of C25K. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.
c25k.com
178 ms
style.css
75 ms
show_ads.js
8 ms
en_US
24 ms
plusone.js
61 ms
hostedbadge.php
237 ms
widgets.js
208 ms
ga.js
138 ms
gtm.js
161 ms
ca-pub-4019759391611469.js
189 ms
zrt_lookup.html
225 ms
show_ads_impl.js
224 ms
319 ms
showban.asp
220 ms
show
209 ms
cb=gapi.loaded_0
240 ms
top.jpg
239 ms
clr-dot.gif
215 ms
home_left.jpg
215 ms
forums.gif
215 ms
shirt.jpg
214 ms
331 ms
xd_arbiter.php
199 ms
xd_arbiter.php
352 ms
335 ms
__utm.gif
81 ms
widgets.js
119 ms
106 ms
ping
284 ms
button.831500944bc3eb7ea5276ccdc3f71d2e.js
202 ms
cb=gapi.loaded_1
182 ms
fastbutton
245 ms
ads
238 ms
191 ms
osd.js
54 ms
ads
249 ms
__utm.gif
28 ms
ads
260 ms
like.php
152 ms
postmessageRelay
68 ms
fan.php
149 ms
tweet_button.6a78875565a912489e9aef879c881358.en.html
60 ms
cb=gapi.loaded_0
37 ms
cb=gapi.loaded_1
42 ms
api.js
44 ms
core:rpc:shindig.random:shindig.sha1.js
102 ms
2536007149-postmessagerelay.js
54 ms
W5F8_SL0XFawnjxHGsZjJA.ttf
160 ms
badge_su.js
163 ms
badges_su.css
163 ms
vpc6VNjRPXV.js
310 ms
LVx-xkvaJ0b.png
285 ms
m_js_controller.js
50 ms
abg.js
68 ms
xYm_UD1pmAz.css
217 ms
_rx8naC75Dy.js
290 ms
x5F9OMjKyLw.js
310 ms
TTCre3391I0.js
222 ms
favicon
130 ms
favicon
113 ms
googlelogo_color_112x36dp.png
89 ms
nessie_icon_tiamat_white.png
48 ms
2342564103726221827
48 ms
jot
175 ms
s
50 ms
x_button_blue2.png
17 ms
badgeRect50x60.png
79 ms
7-1I540iwtLQZRDhQUP9L-vt70m6ZeYTcveWqB03r34.js
14 ms
I6-MnjEovm5.js
38 ms
vlXaquuXMrr.js
81 ms
ui
34 ms
c25k.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
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
c25k.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
c25k.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
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
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise C25k.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 C25k.com main page’s claimed encoding is iso-8859-1. 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.
c25k.com
Open Graph description is not detected on the main page of C25K. 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: