Tools & Wizards About Us
btmail.jp screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

btmail.jp

BTM ユニーク行動ターゲティングメールネットワーク | トップページ

Page Load Speed

2.3 sec in total

First Response

310 ms

Resources Loaded

1.8 sec

Page Rendered

220 ms

btmail.jp screenshot

About Website

Welcome to btmail.jp homepage info - get ready to check BTM Ail best content for Japan right away, or after learning these important things about btmail.jp

BTM行動ターゲティングメールは、日本初のユニーク行動ターゲティング配信を実現した、150万人ユニークユーザーのメールネットワーク型広告。CTR90%以上の実績を誇るターゲティングメールの革命的な新Web広告の登場。

Visit btmail.jp

Key Findings

We analyzed Btmail.jp page load time and found that the first response time was 310 ms and then it took 2 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

btmail.jp performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

48/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

btmail.jp

310 ms

common.css

147 ms

swapimage.js

280 ms

gs.js

320 ms

bgmain.gif

146 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 95% of them (35 requests) were addressed to the original Btmail.jp, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Btmail.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.4 kB (16%)

Content Size

107.4 kB

After Optimization

90.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Btmail.jp main page is 107.4 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. 25% of websites need less resources to load. Images take 67.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 9.7 kB

  • Original 12.8 kB
  • After minification 11.5 kB
  • After compression 3.1 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 1.4 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 9.7 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 60 B

  • Original 67.6 kB
  • After minification 67.5 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. BTM Ail images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 855 B

  • Original 18.7 kB
  • After minification 18.6 kB
  • After compression 17.9 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.

CSS Optimization

-81%

Potential reduce by 6.7 kB

  • Original 8.3 kB
  • After minification 6.5 kB
  • After compression 1.5 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. Btmail.jp needs all CSS files to be minified and compressed as it can save up to 6.7 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

36

After Optimization

36

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BTM Ail. According to our analytics all requests are already optimized.

Network Requests Diagram

btmail.jp

btmail.jp

310 ms

common.css

common.css

147 ms

swapimage.js

swapimage.js

280 ms

gs.js

gs.js

320 ms

bgmain.gif

bgmain.gif

146 ms

bgshadow.gif

bgshadow.gif

141 ms

logo.gif

logo.gif

144 ms

menu_home_off.gif

menu_home_off.gif

280 ms

menu_info_off.gif

menu_info_off.gif

286 ms

menu_search_off.gif

menu_search_off.gif

289 ms

menu_instructions_off.gif

menu_instructions_off.gif

291 ms

menu_inquiry_off.gif

menu_inquiry_off.gif

292 ms

mainpht.jpg

mainpht.jpg

610 ms

sidemenu_dl_off.gif

sidemenu_dl_off.gif

420 ms

sidemenu_release_off.gif

sidemenu_release_off.gif

427 ms

sidemenu_request_off.gif

sidemenu_request_off.gif

432 ms

catchcopy.gif

catchcopy.gif

436 ms

icon_check.gif

icon_check.gif

438 ms

candeliver.gif

candeliver.gif

560 ms

subttl01.gif

subttl01.gif

570 ms

sub01_unique.gif

sub01_unique.gif

576 ms

sub_bgtbl.gif

sub_bgtbl.gif

580 ms

sub01_uniqueactive.gif

sub01_uniqueactive.gif

584 ms

sub01_active.gif

sub01_active.gif

698 ms

btm_mailnetwork.gif

btm_mailnetwork.gif

711 ms

subttl02.gif

subttl02.gif

719 ms

sub02_genre.gif

sub02_genre.gif

726 ms

subttl03.gif

subttl03.gif

729 ms

sub03_metwork01.gif

sub03_metwork01.gif

761 ms

sub03_metwork02.gif

sub03_metwork02.gif

837 ms

subttl04.gif

subttl04.gif

854 ms

sub04_diagram.gif

sub04_diagram.gif

1148 ms

subttl05.gif

subttl05.gif

871 ms

sub05_characteristic.gif

sub05_characteristic.gif

1168 ms

foot.gif

foot.gif

914 ms

ga.js

ga.js

6 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

btmail.jp accessibility score

94

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.

Best Practices

btmail.jp best practices score

75

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

SEO Factors

btmail.jp SEO score

75

Search Engine Optimization Advices

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 Btmail.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 Btmail.jp 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

btmail.jp

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