7.7 sec in total
884 ms
6.5 sec
296 ms
Welcome to optical88.com.hk homepage info - get ready to check Optical 88 best content for Hong Kong right away, or after learning these important things about optical88.com.hk
眼鏡88扎根香港30多年,至今為全港最大的專業配眼鏡零售店。我們深信眼睛是您的靈魂之窗,亦是您接通世界的重要門路,因此致力守護您的眼睛健康,讓您看真人生每段美好。我們 亦開展了眼睛及聽覺護理業務,提供適合男女老少的檢查,如全面眼睛檢查、兒童近視控制、漸進鏡體驗及聽力檢查等 。
Visit optical88.com.hkWe analyzed Optical88.com.hk page load time and found that the first response time was 884 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
optical88.com.hk performance score
name
value
score
weighting
Value13.8 s
0/100
10%
Value90.7 s
0/100
25%
Value55.3 s
0/100
10%
Value8,460 ms
0/100
30%
Value0.009
100/100
15%
Value65.9 s
0/100
10%
884 ms
1280 ms
1601 ms
90 ms
471 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 94% of them (47 requests) were addressed to the original Optical88.com.hk, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Optical88.com.hk.
Page size can be reduced by 836.2 kB (29%)
2.9 MB
2.1 MB
In fact, the total size of Optical88.com.hk main page is 2.9 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. 45% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.
Potential reduce by 39.1 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 6.2 kB, which is 13% 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 39.1 kB or 84% of the original size.
Potential reduce by 340.9 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. Obviously, Optical 88 needs image optimization as it can save up to 340.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 413.9 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 413.9 kB or 80% of the original size.
Potential reduce by 42.3 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. Optical88.com.hk needs all CSS files to be minified and compressed as it can save up to 42.3 kB or 84% of the original size.
Number of requests can be reduced by 11 (24%)
45
34
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optical 88. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.
optical88.com.hk
884 ms
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jquery-1.8.3.js
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jquery.masonry.min.js
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slides.jquery.js
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jPages.js
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jquery.nicescroll.js
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jquery-ui-1.9.2.custom.css
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google.map.infobox.js
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jquery.slides.js
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optical88.com.hk 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
button, link, and menuitem elements do not have accessible names.
[aria-hidden="true"] elements contain focusable descendents
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
optical88.com.hk 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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
optical88.com.hk 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
JA
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Optical88.com.hk can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Optical88.com.hk 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.
optical88.com.hk
Open Graph description is not detected on the main page of Optical 88. 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: