1.8 sec in total
360 ms
1.3 sec
96 ms
Visit femto.com.ua now to see the best up-to-date Femto content for Ukraine and also check out these interesting facts you probably never knew about femto.com.ua
Научно-справочное OnLine издание по физике.
Visit femto.com.uaWe analyzed Femto.com.ua page load time and found that the first response time was 360 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
femto.com.ua performance score
name
value
score
weighting
Value2.1 s
81/100
10%
Value4.1 s
48/100
25%
Value5.4 s
57/100
10%
Value1,280 ms
18/100
30%
Value0.07
96/100
15%
Value9.9 s
27/100
10%
360 ms
114 ms
448 ms
226 ms
69 ms
Our browser made a total of 36 requests to load all elements on the main page. We found that 56% of them (20 requests) were addressed to the original Femto.com.ua, 11% (4 requests) were made to Google.com and 11% (4 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (448 ms) belongs to the original domain Femto.com.ua.
Page size can be reduced by 13.8 kB (4%)
374.8 kB
361.1 kB
In fact, the total size of Femto.com.ua main page is 374.8 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. 20% of websites need less resources to load. Javascripts take 295.2 kB which makes up the majority of the site volume.
Potential reduce by 13.1 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 13.1 kB or 69% of the original size.
Potential reduce by 3 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. Femto images are well optimized though.
Potential reduce by 306 B
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.
Potential reduce by 367 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. Femto.com.ua needs all CSS files to be minified and compressed as it can save up to 367 B or 19% of the original size.
Number of requests can be reduced by 18 (64%)
28
10
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Femto. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
femto.com.ua
360 ms
style.css
114 ms
SchListProcessing.js
448 ms
toggle.js
226 ms
show_ads.js
69 ms
jsapi
7 ms
t13n
18 ms
brand
19 ms
js
18 ms
loader.js
18 ms
query_renderer.js
19 ms
t13n
104 ms
brandjs.js
12 ms
js
108 ms
popularqueryjs
18 ms
femtocomua_small.png
113 ms
menu_start.gif
113 ms
menu_index.gif
115 ms
menu_phys_world.gif
242 ms
pp0030.jpg
335 ms
00084_small.jpg
243 ms
00083_small.jpg
244 ms
00082_small.jpg
244 ms
00081_small.jpg
245 ms
mailabs.gif
334 ms
ga.js
15 ms
adsbygoogle.js
184 ms
branding.png
32 ms
__utm.gif
20 ms
q1.gif
278 ms
q2.gif
276 ms
L1.gif
277 ms
q4.gif
282 ms
q3.gif
385 ms
L3.gif
386 ms
show_ads_impl.js
231 ms
femto.com.ua 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
Form elements do not have associated labels
femto.com.ua best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
Page has valid source maps
femto.com.ua SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
RU
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Femto.com.ua can be misinterpreted by Google and other search engines. Our service has detected that Russian 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 Femto.com.ua 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.
femto.com.ua
Open Graph description is not detected on the main page of Femto. 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: