Tools & Wizards About Us
yamatenki.co.jp screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

yamatenki.co.jp

About | 山岳気象予報 | ヤマテン｜山の天気予報 | 日本

Page Load Speed

2.6 sec in total

First Response

516 ms

Resources Loaded

2 sec

Page Rendered

72 ms

yamatenki.co.jp screenshot

About Website

Visit yamatenki.co.jp now to see the best up-to-date Yamatenki content for Japan and also check out these interesting facts you probably never knew about yamatenki.co.jp

ヤマテン-山の天気予報。山岳気象予報士のパイオニア猪熊 隆之が代表をつとめる、山岳気象予報のリーディングカンパニー「ヤマテン」。きめ細かかつ多岐にわたるサービスを展開。ヤマテンでは山岳救助隊員や登山ガイドといった山のプロが多数利用する信頼の気象予報サービスを展開中！

Visit yamatenki.co.jp

Key Findings

We analyzed Yamatenki.co.jp page load time and found that the first response time was 516 ms and then it took 2.1 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

yamatenki.co.jp performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value18.7 s

3/100

10%

Network Requests Diagram

yamatenki.co.jp

516 ms

www.yamaten.net

162 ms

minified.js

56 ms

focus-within-polyfill.js

56 ms

polyfill.min.js

55 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Yamatenki.co.jp, 37% (19 requests) were made to Static.parastorage.com and 31% (16 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 774.9 kB (59%)

Content Size

1.3 MB

After Optimization

540.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Yamatenki.co.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. 30% of websites need less resources to load. HTML takes 946.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 770.6 kB

  • Original 946.4 kB
  • After minification 944.7 kB
  • After compression 175.8 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 770.6 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 117.4 kB
  • After minification 117.4 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. Yamatenki images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 4.2 kB

  • Original 251.9 kB
  • After minification 251.9 kB
  • After compression 247.7 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 11 (34%)

Requests Now

32

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yamatenki. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

yamatenki.co.jp

yamatenki.co.jp

516 ms

www.yamaten.net

www.yamaten.net

162 ms

minified.js

minified.js

56 ms

focus-within-polyfill.js

focus-within-polyfill.js

56 ms

polyfill.min.js

polyfill.min.js

55 ms

thunderbolt-commons.01583709.bundle.min.js

thunderbolt-commons.01583709.bundle.min.js

377 ms

main.68eafee5.bundle.min.js

main.68eafee5.bundle.min.js

379 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

378 ms

lodash.min.js

lodash.min.js

427 ms

react.production.min.js

react.production.min.js

391 ms

react-dom.production.min.js

react-dom.production.min.js

393 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

388 ms

wix-perf-measure.umd.min.js

wix-perf-measure.umd.min.js

422 ms

yamaten-LOGO.jpg

yamaten-LOGO.jpg

635 ms

bundle.min.js

bundle.min.js

305 ms

9b3bb6_8b16bbb725604a02aaa0345c4541a837~mv2.jpg

9b3bb6_8b16bbb725604a02aaa0345c4541a837~mv2.jpg

811 ms

9b3bb6_40d4f9b4f76340769ed82ab9cb9e5b71~mv2.jpg

9b3bb6_40d4f9b4f76340769ed82ab9cb9e5b71~mv2.jpg

742 ms

9b3bb6_5643e14a8eb94c749b99ff4a63aeeccf~mv2.jpg

9b3bb6_5643e14a8eb94c749b99ff4a63aeeccf~mv2.jpg

500 ms

%E3%81%8A%E4%BB%BB%E3%81%9B%E3%81%8F%E3%81%A0%E3%81%95%E3%81%84%E3%83%9E%E3%83%BC%E3%82%AF.jpg

%E3%81%8A%E4%BB%BB%E3%81%9B%E3%81%8F%E3%81%A0%E3%81%95%E3%81%84%E3%83%9E%E3%83%BC%E3%82%AF.jpg

745 ms

9b3bb6_bc34496b99e7476d915b54c3bf26f338~mv2.webp

9b3bb6_bc34496b99e7476d915b54c3bf26f338~mv2.webp

496 ms

9b3bb6_bc34496b99e7476d915b54c3bf26f338~mv2.webp

9b3bb6_bc34496b99e7476d915b54c3bf26f338~mv2.webp

678 ms

9b3bb6_00edaa7d3c2440abbec435f0cf9e8885~mv2.webp

9b3bb6_00edaa7d3c2440abbec435f0cf9e8885~mv2.webp

685 ms

9b3bb6_00edaa7d3c2440abbec435f0cf9e8885~mv2.webp

9b3bb6_00edaa7d3c2440abbec435f0cf9e8885~mv2.webp

656 ms

9b3bb6_65b5d54904964bf29d42141ae9ae27cf~mv2.webp

9b3bb6_65b5d54904964bf29d42141ae9ae27cf~mv2.webp

944 ms

9b3bb6_65b5d54904964bf29d42141ae9ae27cf~mv2.webp

9b3bb6_65b5d54904964bf29d42141ae9ae27cf~mv2.webp

815 ms

%E3%82%AB%E3%83%90%E3%83%BC%E5%86%99%E7%9C%9F063023.jpg

%E3%82%AB%E3%83%90%E3%83%BC%E5%86%99%E7%9C%9F063023.jpg

850 ms

51XdVgwGhnL__SX297_BO1%2C204%2C203%2C200_.jpg

51XdVgwGhnL__SX297_BO1%2C204%2C203%2C200_.jpg

886 ms

book04.jpg

book04.jpg

881 ms

book01.png

book01.png

1000 ms

bnr_dvd20190322.jpg

bnr_dvd20190322.jpg

1034 ms

e2b9cbeb-fa8e-41cd-8a6a-46044b29ba52.woff

e2b9cbeb-fa8e-41cd-8a6a-46044b29ba52.woff

19 ms

opensans-bold-webfont.woff

opensans-bold-webfont.woff

106 ms

opensans-regular-webfont.woff

opensans-regular-webfont.woff

107 ms

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

86 ms

110 ms

121 ms

120 ms

114 ms

116 ms

112 ms

138 ms

147 ms

151 ms

148 ms

145 ms

140 ms

deprecation-ja.v5.html

deprecation-ja.v5.html

6 ms

bolt-performance

bolt-performance

31 ms

deprecation-style.v5.css

deprecation-style.v5.css

6 ms

right-arrow.svg

right-arrow.svg

25 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

4 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

4 ms

Accessibility Review

yamatenki.co.jp accessibility score

82

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-*] attributes do not match their roles

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

yamatenki.co.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

yamatenki.co.jp SEO score

86

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

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 Yamatenki.co.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 Yamatenki.co.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

yamatenki.co.jp

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