8.1 sec in total
1.6 sec
5.9 sec
565 ms
Welcome to optica100.ru homepage info - get ready to check Optica 100 best content for Russia right away, or after learning these important things about optica100.ru
stethoscopes.ru
Visit optica100.ruWe analyzed Optica100.ru page load time and found that the first response time was 1.6 sec and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
optica100.ru performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value10.4 s
0/100
25%
Value12.1 s
3/100
10%
Value600 ms
49/100
30%
Value0.137
80/100
15%
Value21.4 s
1/100
10%
1635 ms
257 ms
260 ms
261 ms
394 ms
Our browser made a total of 152 requests to load all elements on the main page. We found that 66% of them (100 requests) were addressed to the original Optica100.ru, 11% (16 requests) were made to Vk.com and 5% (8 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Optica100.ru.
Page size can be reduced by 1.1 MB (49%)
2.3 MB
1.2 MB
In fact, the total size of Optica100.ru main page is 2.3 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 96.6 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. 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 96.6 kB or 81% of the original size.
Potential reduce by 33.9 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. Optica 100 images are well optimized though.
Potential reduce by 849.1 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 849.1 kB or 76% of the original size.
Potential reduce by 163.9 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. Optica100.ru needs all CSS files to be minified and compressed as it can save up to 163.9 kB or 81% of the original size.
Number of requests can be reduced by 80 (55%)
146
66
The browser has sent 146 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optica 100. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.
optica100.ru
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optica100.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 input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
optica100.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
Missing source maps for large first-party JavaScript
optica100.ru 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
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
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Optica100.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Optica100.ru 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.
optica100.ru
Open Graph description is not detected on the main page of Optica 100. 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: