Tools & Wizards About Us
odf.jp screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

odf.jp

14th International Conference on Optics-photonics Design and Fabrication

Page Load Speed

5.1 sec in total

First Response

931 ms

Resources Loaded

3.9 sec

Page Rendered

302 ms

odf.jp screenshot

About Website

Visit odf.jp now to see the best up-to-date Odf content for Taiwan and also check out these interesting facts you probably never knew about odf.jp

14th International Conference on Optics-photonics Design and Fabrication / July 10th-12th, 2024 / The University of Arizona, Tucson, Arizona, U.S.A.

Visit odf.jp

Key Findings

We analyzed Odf.jp page load time and found that the first response time was 931 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

odf.jp performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.365

29/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

odf.jp

931 ms

import.css

340 ms

jquery.min.js

20 ms

jquery.bgswitcher.js

690 ms

common.js

347 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 97% of them (38 requests) were addressed to the original Odf.jp, 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Odf.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 33.9 kB (3%)

Content Size

1.3 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Odf.jp main page is 1.3 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. 20% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 13.4 kB

  • Original 16.8 kB
  • After minification 12.4 kB
  • After compression 3.4 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. This page needs HTML code to be minified as it can gain 4.4 kB, which is 26% 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 13.4 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 1.2 kB

  • Original 1.3 MB
  • After minification 1.3 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. Odf images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 9.8 kB

  • Original 43.2 kB
  • After minification 38.2 kB
  • After compression 33.5 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 9.8 kB or 23% of the original size.

CSS Optimization

-74%

Potential reduce by 9.6 kB

  • Original 13.1 kB
  • After minification 9.1 kB
  • After compression 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. Odf.jp needs all CSS files to be minified and compressed as it can save up to 9.6 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (11%)

Requests Now

38

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Odf. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

odf.jp

odf.jp

931 ms

import.css

import.css

340 ms

jquery.min.js

jquery.min.js

20 ms

jquery.bgswitcher.js

jquery.bgswitcher.js

690 ms

common.js

common.js

347 ms

html5reset-1.6.1.css

html5reset-1.6.1.css

170 ms

component.css

component.css

178 ms

base.css

base.css

182 ms

custom.css

custom.css

338 ms

no_hiking.jpg

no_hiking.jpg

176 ms

group_photo.jpg

group_photo.jpg

691 ms

bap_1.jpg

bap_1.jpg

843 ms

bap_2.jpg

bap_2.jpg

692 ms

logo_odg.jpg

logo_odg.jpg

171 ms

logo_ap.jpg

logo_ap.jpg

348 ms

logo_takano.jpg

logo_takano.jpg

341 ms

logo_osj.jpg

logo_osj.jpg

349 ms

logo_spie.jpg

logo_spie.jpg

517 ms

logo_ov.jpg

logo_ov.jpg

534 ms

logo_ioc.jpg

logo_ioc.jpg

530 ms

logo_eos.jpg

logo_eos.jpg

694 ms

logo_optica.jpg

logo_optica.jpg

704 ms

logo_tps.jpg

logo_tps.jpg

707 ms

logo_color-science.png

logo_color-science.png

864 ms

logo_eic.png

logo_eic.png

865 ms

logo_ieij.jpg

logo_ieij.jpg

863 ms

logo_jspe.jpg

logo_jspe.jpg

879 ms

logo_oitda.jpg

logo_oitda.jpg

882 ms

logo_sid.png

logo_sid.png

1013 ms

logo_spsj.jpg

logo_spsj.jpg

2589 ms

logo_jpc.jpg

logo_jpc.jpg

1038 ms

header.html

header.html

1012 ms

footer.html

footer.html

1024 ms

nav.html

nav.html

1027 ms

img_top-main_01.jpg

img_top-main_01.jpg

1484 ms

img_top-main_02.jpg

img_top-main_02.jpg

1524 ms

img_top-main_03.jpg

img_top-main_03.jpg

1353 ms

img_top-main_04.jpg

img_top-main_04.jpg

1365 ms

header.svg

header.svg

879 ms

Accessibility Review

odf.jp accessibility score

74

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

odf.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

odf.jp SEO score

96

Search Engine Optimization Advices

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 Odf.jp 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 Odf.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

odf.jp

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