4.7 sec in total
1.4 sec
3 sec
245 ms
Welcome to opticdevices.ru homepage info - get ready to check Opticdevices best content for Russia right away, or after learning these important things about opticdevices.ru
Мы поможем Вам купить бинокли, зрительные трубы, оптические или коллиматорные прицелы и кронштейны для установки их на оружие, приборы ночного видения, подствольные фонари, лазерные целеуказатели и да...
Visit opticdevices.ruWe analyzed Opticdevices.ru page load time and found that the first response time was 1.4 sec and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
opticdevices.ru performance score
name
value
score
weighting
Value1.9 s
87/100
10%
Value2.6 s
87/100
25%
Value3.0 s
94/100
10%
Value140 ms
95/100
30%
Value0.003
100/100
15%
Value4.6 s
81/100
10%
1439 ms
395 ms
699 ms
271 ms
272 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 82% of them (32 requests) were addressed to the original Opticdevices.ru, 5% (2 requests) were made to Counter.rambler.ru and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Opticdevices.ru.
Page size can be reduced by 45.1 kB (52%)
87.3 kB
42.2 kB
In fact, the total size of Opticdevices.ru main page is 87.3 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. HTML takes 40.4 kB which makes up the majority of the site volume.
Potential reduce by 32.2 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. 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 32.2 kB or 80% of the original size.
Potential reduce by 34 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. Opticdevices images are well optimized though.
Potential reduce by 9.5 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 9.5 kB or 27% of the original size.
Potential reduce by 3.3 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. Opticdevices.ru needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 72% of the original size.
Number of requests can be reduced by 12 (33%)
36
24
The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opticdevices. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
opticdevices.ru
1439 ms
style.css
395 ms
jquery.min.js
699 ms
main.js
271 ms
user.js
272 ms
top100.jcn
396 ms
watch.js
1 ms
ga.js
25 ms
fon_vert.gif
138 ms
strel_1.gif
135 ms
srg.gif
133 ms
cart-bg.png
136 ms
shopcart.png
134 ms
logo.jpg
261 ms
fon_22.gif
262 ms
fon-g.png
267 ms
point_v.gif
266 ms
point.gif
271 ms
banner-pu.png
587 ms
10591.gif
419 ms
11766.gif
393 ms
11359.gif
416 ms
500010.gif
416 ms
257.gif
422 ms
10753.gif
527 ms
10627.gif
548 ms
10952.gif
552 ms
banner-man.jpg
915 ms
banner-sg49.jpg
855 ms
banner-bed35.jpg
811 ms
fon_21.gif
674 ms
12120.gif
683 ms
12560.gif
722 ms
12561.gif
816 ms
12411.gif
818 ms
hit
264 ms
__utm.gif
18 ms
top100.scn
136 ms
hit
151 ms
opticdevices.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
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>).
opticdevices.ru 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
opticdevices.ru SEO score
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
Tap targets are not sized appropriately
RU
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opticdevices.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 Opticdevices.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.
opticdevices.ru
Open Graph description is not detected on the main page of Opticdevices. 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: