2.4 sec in total
420 ms
1.7 sec
194 ms
Click here to check amazing Chemister content for Russia. Otherwise, check out these important facts you probably never knew about chemister.ru
Статьи по химии и токсикологии. Бесплатная база данных свойств веществ. Описание токсинов и токсичных веществ. Методики химических синтезов. Химические константы и свойства веществ.
Visit chemister.ruWe analyzed Chemister.ru page load time and found that the first response time was 420 ms and then it took 1.9 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.
chemister.ru performance score
name
value
score
weighting
Value1.0 s
100/100
10%
Value3.2 s
71/100
25%
Value4.2 s
77/100
10%
Value1,240 ms
19/100
30%
Value0.013
100/100
15%
Value9.9 s
27/100
10%
420 ms
77 ms
8 ms
8 ms
30 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that 15% of them (4 requests) were addressed to the original Chemister.ru, 19% (5 requests) were made to Pagead2.googlesyndication.com and 15% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (420 ms) belongs to the original domain Chemister.ru.
Page size can be reduced by 32.6 kB (49%)
67.2 kB
34.6 kB
In fact, the total size of Chemister.ru main page is 67.2 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. 25% of websites need less resources to load. Javascripts take 33.4 kB which makes up the majority of the site volume.
Potential reduce by 22.4 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 22.4 kB or 76% of the original size.
Potential reduce by 221 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. Chemister images are well optimized though.
Potential reduce by 9.8 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 9.8 kB or 29% of the original size.
Potential reduce by 218 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. Chemister.ru needs all CSS files to be minified and compressed as it can save up to 218 B or 33% of the original size.
Number of requests can be reduced by 7 (32%)
22
15
The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemister. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
chemister.ru
420 ms
style.css
77 ms
show_ads.js
8 ms
ga.js
8 ms
branding.css
30 ms
poweredby_FFFFFF.gif
30 ms
empty.gif
94 ms
logo.gif
176 ms
__utm.gif
28 ms
branding.css
39 ms
ca-pub-5908629535164869.js
23 ms
zrt_lookup.html
26 ms
show_ads_impl.js
46 ms
hit
279 ms
ads
282 ms
osd.js
13 ms
ads
242 ms
m_js_controller.js
18 ms
abg.js
41 ms
favicon
36 ms
googlelogo_color_112x36dp.png
27 ms
nessie_icon_thin_arrow_big_white.png
19 ms
s
14 ms
x_button_blue2.png
4 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
4 ms
hotlog_redirects
207 ms
chemister.ru 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
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
Form elements do not have associated labels
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
chemister.ru 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
chemister.ru SEO score
RU
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemister.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 Chemister.ru main page’s claimed encoding is windows-1251. 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.
chemister.ru
Open Graph description is not detected on the main page of Chemister. 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: