Tools & Wizards About Us
jafnavi.jp screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

jafnavi.jp

JAFナビ｜身近なお得がきっと見つかる！ JAF優待情報サイト

Page Load Speed

25.6 sec in total

First Response

1 sec

Resources Loaded

23.8 sec

Page Rendered

787 ms

jafnavi.jp screenshot

About Website

Click here to check amazing Jafnavi content for Japan. Otherwise, check out these important facts you probably never knew about jafnavi.jp

JAF公式優待情報サイト「JAFナビ」は、全国約44,000の優待施設のお得な情報をご紹介するポータルサイトです。ショッピング・グルメ・観光名所など、毎日の暮らしやお出かけで使える割引やプレゼント情報が盛りだくさん！ 今だけの特別な情報をお見逃しなく！

Visit jafnavi.jp

Key Findings

We analyzed Jafnavi.jp page load time and found that the first response time was 1 sec and then it took 24.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

jafnavi.jp performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value30.8 s

0/100

25%

SI (Speed Index)

Value22.1 s

0/100

10%

TBT (Total Blocking Time)

Value5,590 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.185

66/100

15%

TTI (Time to Interactive)

Value34.3 s

0/100

10%

Network Requests Diagram

jafnavi.jp

1012 ms

jafnavi.css

1135 ms

common.2.0.css

983 ms

jquery-1.10.1.min.js

1147 ms

style.css

659 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 39% of them (34 requests) were addressed to the original Jafnavi.jp, 16% (14 requests) were made to Cdn.jafnavi.jp and 9% (8 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Clarity.ms.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (21%)

Content Size

5.1 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jafnavi.jp main page is 5.1 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. 70% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 46.8 kB

  • Original 60.3 kB
  • After minification 56.7 kB
  • After compression 13.5 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 46.8 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 83.0 kB

  • Original 3.8 MB
  • After minification 3.7 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. Jafnavi images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 529.1 kB

  • Original 840.7 kB
  • After minification 775.1 kB
  • After compression 311.6 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 529.1 kB or 63% of the original size.

CSS Optimization

-87%

Potential reduce by 391.0 kB

  • Original 449.6 kB
  • After minification 376.5 kB
  • After compression 58.6 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. Jafnavi.jp needs all CSS files to be minified and compressed as it can save up to 391.0 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (52%)

Requests Now

84

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jafnavi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jafnavi.jp

jafnavi.jp

1012 ms

jafnavi.css

jafnavi.css

1135 ms

common.2.0.css

common.2.0.css

983 ms

jquery-1.10.1.min.js

jquery-1.10.1.min.js

1147 ms

style.css

style.css

659 ms

ie7.css

ie7.css

824 ms

style.css

style.css

497 ms

all.min.css

all.min.css

1162 ms

prototype.min.js

prototype.min.js

26 ms

xml.js

xml.js

984 ms

common.js

common.js

988 ms

wcommon.js

wcommon.js

1468 ms

link.js

link.js

1177 ms

jquery.ah-placeholder.js

jquery.ah-placeholder.js

1178 ms

jquery.common.js

jquery.common.js

1296 ms

scrolltopcontrol.js

scrolltopcontrol.js

1308 ms

common.1.0.js

common.1.0.js

1309 ms

jquery.common.responsive.js

jquery.common.responsive.js

1311 ms

index.2.0.css

index.2.0.css

1160 ms

index.2.0.js

index.2.0.js

1303 ms

sdk.js

sdk.js

307 ms

P8TT2Smf6s6gvR3-Pzshl.js

P8TT2Smf6s6gvR3-Pzshl.js

476 ms

sdk.js

sdk.js

14 ms

widgetQs.js

widgetQs.js

2005 ms

gtm.js

gtm.js

95 ms

img_hero_pc.png

img_hero_pc.png

2274 ms

logo_jafnavi.svg

logo_jafnavi.svg

213 ms

logo_jaf.svg

logo_jaf.svg

214 ms

bnr_local_1440-450.jpg

bnr_local_1440-450.jpg

784 ms

ft_tx001.gif

ft_tx001.gif

217 ms

img_hero_sp.png

img_hero_sp.png

1798 ms

bnr_60th-yumepuro-movie_720-450.png

bnr_60th-yumepuro-movie_720-450.png

2763 ms

bnr_facility_720-450-2.png

bnr_facility_720-450-2.png

1807 ms

bnr_facility_720-450.png

bnr_facility_720-450.png

3399 ms

bnr_app_720-450_coupon.png

bnr_app_720-450_coupon.png

1835 ms

lifesupport_bnr_2312_720-450.png

lifesupport_bnr_2312_720-450.png

3618 ms

bnr_720-450.png

bnr_720-450.png

2506 ms

bnr_premium-service_720-450.png

bnr_premium-service_720-450.png

3796 ms

bnr_app_720-450.png

bnr_app_720-450.png

3744 ms

bnr_e-jaf-reservation_192-192.jpg

bnr_e-jaf-reservation_192-192.jpg

2699 ms

bnr_jafnavi.jp_192-192.png

bnr_jafnavi.jp_192-192.png

2893 ms

bnr_kiko_192-192.jpg

bnr_kiko_192-192.jpg

3049 ms

bnr_jafservice_192-192.png

bnr_jafservice_192-192.png

3178 ms

sdk.js

sdk.js

18 ms

index_qs.css

index_qs.css

196 ms

jquery-ui.min.css

jquery-ui.min.css

195 ms

select2.min.css

select2.min.css

370 ms

jquery-ui.min.js

jquery-ui.min.js

995 ms

select2.min.js

select2.min.js

522 ms

37 ms

analytics.js

analytics.js

32 ms

gtm.js

gtm.js

126 ms

gtm.js

gtm.js

65 ms

docodoco

docodoco

1009 ms

78ptcpcr2l

78ptcpcr2l

20223 ms

9rijsbgdyn

9rijsbgdyn

20222 ms

collect

collect

78 ms

collect

collect

150 ms

collect

collect

141 ms

collect

collect

181 ms

collect

collect

140 ms

collect

collect

289 ms

collect

collect

134 ms

collect

collect

284 ms

collect

collect

130 ms

collect

collect

279 ms

destination

destination

79 ms

ytag.js

ytag.js

951 ms

js

js

105 ms

js

js

156 ms

js

js

153 ms

js

js

391 ms

ga-audiences

ga-audiences

455 ms

ga-audiences

ga-audiences

437 ms

ga-audiences

ga-audiences

394 ms

fa-solid-900.woff

fa-solid-900.woff

346 ms

fa-regular-400.woff

fa-regular-400.woff

167 ms

new_info_gadget.php

new_info_gadget.php

285 ms

com_pagetop.png

com_pagetop.png

217 ms

i-jafnavi.ttf

i-jafnavi.ttf

382 ms

otSDKStub.js

otSDKStub.js

55 ms

docodoco_ua_plugin.js

docodoco_ua_plugin.js

170 ms

b6363475-e601-4756-9e5a-2eb9378a013d.json

b6363475-e601-4756-9e5a-2eb9378a013d.json

29 ms

location

location

62 ms

otBannerSdk.js

otBannerSdk.js

32 ms

docodoco_ua_plugin_2.js

docodoco_ua_plugin_2.js

176 ms

docodoco_ua_industrialcode_plugin.js

docodoco_ua_industrialcode_plugin.js

333 ms

Accessibility Review

jafnavi.jp accessibility score

89

Accessibility Issues

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

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

[id] attributes on active, focusable elements are not unique

Best Practices

jafnavi.jp best practices score

67

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

High

Browser errors were logged to the console

SEO Factors

jafnavi.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 Jafnavi.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 Jafnavi.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

jafnavi.jp

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