Access piazza-omi.jp. ピアザ淡海　滋賀県立県民交流センター

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

piazza-omi.jp

230 ms

common.css

67 ms

maps

48 ms

jquery.min.js

40 ms

effect.js

129 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 55% of them (41 requests) were addressed to the original Piazza-omi.jp, 17% (13 requests) were made to Maps.googleapis.com and 9% (7 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Piazza-omi.jp.

Content Size

2.3 MB

After Optimization

1.8 MB

In fact, the total size of Piazza-omi.jp main page is 2.3 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. 60% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 7.9 kB

Original 11.3 kB
After minification 9.8 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 1.5 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 7.9 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 12.7 kB

Original 1.6 MB
After minification 1.6 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. Piazza Omi images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 476.9 kB

Original 684.5 kB
After minification 684.4 kB
After compression 207.5 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 476.9 kB or 70% of the original size.

CSS Optimization

-77%

Potential reduce by 11.6 kB

Original 15.0 kB
After minification 11.6 kB
After compression 3.4 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. Piazza-omi.jp needs all CSS files to be minified and compressed as it can save up to 11.6 kB or 77% of the original size.

Requests Now

After Optimization

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Piazza Omi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

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

High

Image elements do not have [alt] attributes

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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 Piazza-omi.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 Piazza-omi.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

piazza-omi.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

ピアザ淡海 滋賀県立県民交流センター

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

piazza-omi.jp

common.css

maps

jquery.min.js

effect.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

piazza-omi.jp

common.css

maps

jquery.min.js

effect.js

logo.jpg

link_contact.jpg

navi_home.jpg

navi_fcl.jpg

navi_guid.jpg

navi_case.jpg

navi_acc.jpg

navi_spr.jpg

img_main.jpg

title_info.jpg

link_side_status.jpg

title_side01.jpg

title_side02.jpg

link_side_contact.jpg

title_side03.jpg

banner01.jpg

banner02.jpg

title_index_intro.jpg

img_index_intro.jpg

title_index_scene.jpg

img_index_scene01.jpg

img_index_scene02.jpg

img_index_scene03.jpg

img_index_scene04.jpg

img_index_scene05.jpg

img_index_scene06.jpg

title_index_facility.jpg

img_index_facility01.jpg

img_index_facility02.jpg

img_index_facility04.jpg

img_index_facility03.jpg

img_index_facility05.jpg

img_index_facility06.jpg

img_contact.jpg

embed

link_head.jpg

img_foot_title.jpg

bg_base.jpg

ピアザ淡海　滋賀県立県民交流センター