5.8 sec in total
301 ms
4.9 sec
621 ms
Welcome to oplens.com homepage info - get ready to check Op Lens best content right away, or after learning these important things about oplens.com
Oplens is one of leading optical elements and spherical lens manufacturer. We insist on supply high precision optical products with consistent quality and professional serve.
Visit oplens.comWe analyzed Oplens.com page load time and found that the first response time was 301 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
oplens.com performance score
name
value
score
weighting
Value2.7 s
60/100
10%
Value5.6 s
18/100
25%
Value4.0 s
80/100
10%
Value550 ms
54/100
30%
Value0.304
39/100
15%
Value11.2 s
20/100
10%
301 ms
440 ms
86 ms
98 ms
167 ms
Our browser made a total of 90 requests to load all elements on the main page. We found that 70% of them (63 requests) were addressed to the original Oplens.com, 24% (22 requests) were made to Chat.chukouplus.com and 3% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Oplens.com.
Page size can be reduced by 142.7 kB (23%)
611.9 kB
469.2 kB
In fact, the total size of Oplens.com main page is 611.9 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. 65% of websites need less resources to load. Images take 283.0 kB which makes up the majority of the site volume.
Potential reduce by 63.6 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 63.6 kB or 81% of the original size.
Potential reduce by 94 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. Op Lens images are well optimized though.
Potential reduce by 75.5 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 75.5 kB or 34% of the original size.
Potential reduce by 3.5 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. Oplens.com needs all CSS files to be minified and compressed as it can save up to 3.5 kB or 14% of the original size.
Number of requests can be reduced by 26 (34%)
76
50
The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Op Lens. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
oplens.com
301 ms
www.oplens.com
440 ms
main.css
86 ms
donghua.css
98 ms
jquery.js
167 ms
modernizr.js
117 ms
js
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lunboba.js
102 ms
stopExecutionOnTimeout.js
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zpgd.js
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bottom.js
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tab.js
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form1.js
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index.php
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erweima150_150.webp
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Poppins-Regular.woff
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iconfont.woff
355 ms
iconfont.woff
340 ms
Poppins-SemiBold.woff
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js
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Poppins-SemiBold.woff
279 ms
error_html
2228 ms
init_kefu.js
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js
43 ms
analytics.js
11 ms
collect
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error_html
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kefu-logo.png
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init_kefu.css
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jquery-1.11.3.min.js
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index.js
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webuploader.css
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kefu_chat.css
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placeholder.js
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kefu_chat.js
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jqurey-form.js
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webuploader.js
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upload.js
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upload2.js
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layer.js
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Poppins-SemiBold.svg
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error_html
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Poppins-Regular.svg
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file-img.png
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fine-file.png
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layer.css
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oplens.com 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
Image elements do not have [alt] attributes
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>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
oplens.com 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
oplens.com 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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oplens.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Oplens.com 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.
oplens.com
Open Graph data is detected on the main page of Op Lens. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: