Access tennis35.seesaa.net. テニス好きのブログ

name

value

score

weighting

FCP (First Contentful Paint)

Value12.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value29.8 s

0/100

10%

TBT (Total Blocking Time)

Value4,070 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value28.8 s

0/100

10%

tennis35.seesaa.net

1813 ms

styles-index.css

342 ms

user-common.css

303 ms

common_header.js

319 ms

ad_plugin.js

354 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Tennis35.seesaa.net, 25% (22 requests) were made to Blog.seesaa.jp and 4% (4 requests) were made to Static.affiliate.rakuten.co.jp. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Tennis35.seesaa.net.

Content Size

579.1 kB

After Optimization

207.5 kB

In fact, the total size of Tennis35.seesaa.net main page is 579.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Javascripts take 353.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 26.2 kB

Original 36.5 kB
After minification 32.5 kB
After compression 10.3 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 4.0 kB, which is 11% 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 26.2 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 57.7 kB
After minification 57.7 kB

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. Tennis 35 Seesaa images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 226.9 kB

Original 353.9 kB
After minification 332.1 kB
After compression 127.0 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 226.9 kB or 64% of the original size.

CSS Optimization

-90%

Potential reduce by 118.5 kB

Original 131.0 kB
After minification 127.6 kB
After compression 12.5 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. Tennis35.seesaa.net needs all CSS files to be minified and compressed as it can save up to 118.5 kB or 90% of the original size.

Requests Now

After Optimization

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tennis 35 Seesaa. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

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

Form elements do not have associated labels

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

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tennis35.seesaa.net 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 Tennis35.seesaa.net main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

tennis35.seesaa.net

Open Graph description is not detected on the main page of Tennis 35 Seesaa. 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

テニス好きのブログ

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

tennis35.seesaa.net

styles-index.css

user-common.css

common_header.js

ad_plugin.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

tennis35.seesaa.net

styles-index.css

user-common.css

common_header.js

ad_plugin.js

show_ads.js

bl-bookmarks.js

js.php

auc_bp.js

rakuten_widget.js

tag_cloud.js

trace_searcher.js

analytics-seesaa-net.js

a_01.gif

b_b_kon.gif

u80.gif

180_150.jpg

fan_read.gif

fan_received.gif

seesaablog.gif

common-header.css

ot_square.pl

AdLantisLoader.js

common_header_sb.js

16.gif

embed.js

ico_pr2.gif

ico_pr3.gif

bn_w2.gif

common_header_sb.css

common_header_sb1.gif

common_header_sb.gif

zrt_lookup.html

show_ads_impl.js

ads

body_l.gif

title_l.gif

footer_l.gif

osd.js

uSz.js

bookmark_button.js

sdk.js

widgets.js