Tools & Wizards About Us

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

jins.com

Prescription Glasses Online | Frames & Sunglasses | JINS Eyewear

Page Load Speed

2.2 sec in total

First Response

269 ms

Resources Loaded

1.5 sec

Page Rendered

427 ms

About Website

Welcome to jins.com homepage info - get ready to check JINS best content for Japan right away, or after learning these important things about jins.com

JINS, prescription eyeglasses & sunglasses that suit your style & budget. A collection with a wide variety of affordable, high quality & stylish frames online.

Visit jins.com

Key Findings

We analyzed Jins.com page load time and found that the first response time was 269 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

jins.com performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.2 s

0/100

25%

SI (Speed Index)

Value60.7 s

0/100

10%

TBT (Total Blocking Time)

Value75,720 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value100.2 s

0/100

10%

Network Requests Diagram

jins.com

269 ms

235 ms

d58d53cf06031642d9eacd630e625d51.css

19 ms

prototype.js

46 ms

ccard.js

42 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 88% of them (61 requests) were addressed to the original Jins.com, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (301 ms) belongs to the original domain Jins.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (41%)

Content Size

2.5 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jins.com main page is 2.5 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. 75% 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 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 39.7 kB

  • Original 51.2 kB
  • After minification 46.8 kB
  • After compression 11.4 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 39.7 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 149.8 kB

  • Original 1.4 MB
  • After minification 1.2 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. Obviously, JINS needs image optimization as it can save up to 149.8 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 639.2 kB

  • Original 858.6 kB
  • After minification 663.5 kB
  • After compression 219.4 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 639.2 kB or 74% of the original size.

CSS Optimization

-86%

Potential reduce by 199.5 kB

  • Original 230.7 kB
  • After minification 227.9 kB
  • After compression 31.2 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. Jins.com needs all CSS files to be minified and compressed as it can save up to 199.5 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (47%)

Requests Now

66

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JINS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jins.com accessibility score

93

Accessibility Issues

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

High

ARIA input fields do not have accessible names

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

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.

Best Practices

jins.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

jins.com SEO score

84

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jins.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 Jins.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.

Social Sharing Optimization

Open Graph data is detected on the main page of JINS. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: