3.2 sec in total
788 ms
2.3 sec
109 ms
Click here to check amazing Dfe Petrsu content for Russia. Otherwise, check out these important facts you probably never knew about dfe.petrsu.ru
Кафедра информационно-измерительных систем и физической электроники, КИИСиФЭ, Петрозаводский государственный университет, ПетрГУ, физико-технический факультет, ФТФ
Visit dfe.petrsu.ruWe analyzed Dfe.petrsu.ru page load time and found that the first response time was 788 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
dfe.petrsu.ru performance score
name
value
score
weighting
Value1.1 s
100/100
10%
Value2.2 s
94/100
25%
Value2.2 s
99/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value1.1 s
100/100
10%
788 ms
156 ms
126 ms
260 ms
260 ms
Our browser made a total of 24 requests to load all elements on the main page. We found that 83% of them (20 requests) were addressed to the original Dfe.petrsu.ru, 8% (2 requests) were made to U1693.11.spylog.com and 4% (1 request) were made to Thermo.karelia.ru. The less responsive or slowest element that took the longest time to load (971 ms) relates to the external source Thermo.karelia.ru.
Page size can be reduced by 25.2 kB (66%)
38.4 kB
13.2 kB
In fact, the total size of Dfe.petrsu.ru main page is 38.4 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. Only 10% of websites need less resources to load. HTML takes 22.0 kB which makes up the majority of the site volume.
Potential reduce by 17.2 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 3.7 kB, which is 17% 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 17.2 kB or 78% of the original size.
Potential reduce by 1.4 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. Obviously, Dfe Petrsu needs image optimization as it can save up to 1.4 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 6.6 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. Dfe.petrsu.ru needs all CSS files to be minified and compressed as it can save up to 6.6 kB or 86% of the original size.
Number of requests can be reduced by 8 (40%)
20
12
The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dfe Petrsu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
dfe.petrsu.ru
788 ms
index.php
156 ms
style.css
126 ms
logo.gif
260 ms
point.gif
260 ms
top_points.gif
259 ms
tb
971 ms
cnt
615 ms
item.gif
130 ms
lab127_8831.png
229 ms
rtls_8831.png
230 ms
OSAF-logo-88x31.png
231 ms
itmultimedia_logo_88x31.png
247 ms
bottom_points.gif
252 ms
top_right.gif
257 ms
lab505-2.jpg
351 ms
lab220-4.jpg
353 ms
lab223-4.jpg
354 ms
blank.gif
369 ms
upgr_points.gif
377 ms
bottom_grad.gif
384 ms
bottom_right.gif
473 ms
u1693.11.spylog.com
334 ms
cnt
255 ms
dfe.petrsu.ru 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
Links do not have a discernible name
dfe.petrsu.ru 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
dfe.petrsu.ru 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
RU
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dfe.petrsu.ru 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 Dfe.petrsu.ru 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.
dfe.petrsu.ru
Open Graph description is not detected on the main page of Dfe Petrsu. 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: