Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

oceanphotonics.com

[小型分光器・積分球] 光計測機器の専門商社 オーシャンフォトニクス株式会社 | オーシャンオプティクスの世界No.1代理店

Page Load Speed

7.5 sec in total

First Response

697 ms

Resources Loaded

6.4 sec

Page Rendered

423 ms

oceanphotonics.com screenshot

About Website

Visit oceanphotonics.com now to see the best up-to-date Oceanphotonics content for Japan and also check out these interesting facts you probably never knew about oceanphotonics.com

オーシャンインサイト(旧オーシャンオプティクス)の世界No.1代理店オーシャンフォトニクスは分光器、積分球を中心に、お客様の用途に最適な光計測システムを提案します。

Visit oceanphotonics.com

Key Findings

We analyzed Oceanphotonics.com page load time and found that the first response time was 697 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.

Performance Metrics

oceanphotonics.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value6.0 s

46/100

10%

TBT (Total Blocking Time)

Value300 ms

78/100

30%

CLS (Cumulative Layout Shift)

Value0.241

52/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

oceanphotonics.com

697 ms

style.css

614 ms

slick.css

329 ms

jquery-1.10.2.min.js

827 ms

jquery.easing.1.3.js

336 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 82% of them (67 requests) were addressed to the original Oceanphotonics.com, 11% (9 requests) were made to Google.com and 4% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Oceanphotonics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 451.5 kB (26%)

Content Size

1.7 MB

After Optimization

1.3 MB

In fact, the total size of Oceanphotonics.com main page is 1.7 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. 40% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 20.0 kB

  • Original 26.3 kB
  • After minification 24.2 kB
  • After compression 6.2 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 20.0 kB or 76% of the original size.

Image Optimization

-16%

Potential reduce by 208.0 kB

  • Original 1.3 MB
  • After minification 1.1 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, Oceanphotonics needs image optimization as it can save up to 208.0 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 163.6 kB

  • Original 279.9 kB
  • After minification 248.9 kB
  • After compression 116.3 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 163.6 kB or 58% of the original size.

CSS Optimization

-84%

Potential reduce by 59.9 kB

  • Original 71.7 kB
  • After minification 57.8 kB
  • After compression 11.7 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. Oceanphotonics.com needs all CSS files to be minified and compressed as it can save up to 59.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (29%)

Requests Now

78

After Optimization

55

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oceanphotonics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

oceanphotonics.com accessibility score

89

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

High

Links do not have a discernible name

Best Practices

oceanphotonics.com best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

oceanphotonics.com SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oceanphotonics.com 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 Oceanphotonics.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 description is not detected on the main page of Oceanphotonics. 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: