Access bestlens.jp. 使い捨てコンタクトレンズ専門通販サイト BestLens

bestlens.jp screenshot

4

Performance

Renders faster than
20% of other websites
70

Accessibility

Visual factors better than
that of 35% of websites
75

Best Practices

More advanced features
available than in
35% of websites
100

SEO

Google-friendlier than
94% of websites

First Response

501 ms

Resources Loaded

15.2 sec

Page Rendered

839 ms

bestlens.jp screenshot

About Website

Visit bestlens.jp now to see the best up-to-date Best Lens content for Japan and also check out these interesting facts you probably never knew about bestlens.jp

使い捨てコンタクトレンズ通販。安くて安心のコンタクトレンズをお探しの方は『BestLens』へ！

Visit bestlens.jp

Key Findings

We analyzed Bestlens.jp page load time and found that the first response time was 501 ms and then it took 16 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value9.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value18.7 s

0/100

25%

SI (Speed Index)

Value20.6 s

0/100

10%

TBT (Total Blocking Time)

Value3,040 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.44

21/100

15%

TTI (Time to Interactive)

Value29.6 s

0/100

10%

bestlens.jp

501 ms

www.bestlens.jp

2514 ms

gtm.js

66 ms

get_text.js

643 ms

jquery-1.7.2.min.js

1298 ms

Our browser made a total of 310 requests to load all elements on the main page. We found that 96% of them (299 requests) were addressed to the original Bestlens.jp, 1% (4 requests) were made to Fonts.gstatic.com and 0% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Bestlens.jp.

Content Size

4.5 MB

After Optimization

4.0 MB

In fact, the total size of Bestlens.jp main page is 4.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-94%

Potential reduce by 251.6 kB

Original 268.2 kB
After minification 201.0 kB
After compression 16.6 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. This page needs HTML code to be minified as it can gain 67.2 kB, which is 25% 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 251.6 kB or 94% of the original size.

Image Optimization

-0%

Potential reduce by 16.3 kB

Original 3.9 MB
After minification 3.9 MB

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. Best Lens images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 88.3 kB

Original 157.1 kB
After minification 153.8 kB
After compression 68.8 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 88.3 kB or 56% of the original size.

CSS Optimization

-89%

Potential reduce by 152.6 kB

Original 171.6 kB
After minification 144.8 kB
After compression 19.0 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. Bestlens.jp needs all CSS files to be minified and compressed as it can save up to 152.6 kB or 89% of the original size.

Requests Now

304

After Optimization

281

The browser has sent 304 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Best 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 16 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

<frame> or <iframe> elements do not have a title

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bestlens.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Bestlens.jp 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.

Social Sharing Optimization

bestlens.jp

Open Graph description is not detected on the main page of Best Lens. 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: