Tools & Wizards About Us
bolt.jp screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 55

    SEO

    Google-friendlier than
    20% of websites

bolt.jp

無効なURLです

Page Load Speed

1.9 sec in total

First Response

227 ms

Resources Loaded

1.1 sec

Page Rendered

541 ms

bolt.jp screenshot

About Website

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

カスタムバイクパーツカタログ。バイク乗りによるバイク乗りの為のバイク用品とバイクパーツのサインハウス

Visit bolt.jp

Key Findings

We analyzed Bolt.jp page load time and found that the first response time was 227 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

bolt.jp performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.6 s

100/100

25%

SI (Speed Index)

Value0.9 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.6 s

100/100

10%

Network Requests Diagram

bolt.jp

227 ms

www.bolt.jp

253 ms

textstle.css

89 ms

column_style.css

86 ms

grn_style.css

126 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that all of those requests were addressed to Bolt.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (315 ms) belongs to the original domain Bolt.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 226.6 kB (30%)

Content Size

746.1 kB

After Optimization

519.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bolt.jp main page is 746.1 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. 25% of websites need less resources to load. Images take 489.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 62.1 kB

  • Original 71.9 kB
  • After minification 65.0 kB
  • After compression 9.8 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 62.1 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 6.3 kB

  • Original 489.8 kB
  • After minification 483.5 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. Bolt images are well optimized though.

JavaScript Optimization

-83%

Potential reduce by 97.5 kB

  • Original 117.6 kB
  • After minification 82.2 kB
  • After compression 20.1 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 97.5 kB or 83% of the original size.

CSS Optimization

-91%

Potential reduce by 60.8 kB

  • Original 66.7 kB
  • After minification 57.0 kB
  • After compression 6.0 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. Bolt.jp needs all CSS files to be minified and compressed as it can save up to 60.8 kB or 91% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (25%)

Requests Now

60

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bolt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bolt.jp

bolt.jp

227 ms

www.bolt.jp

www.bolt.jp

253 ms

textstle.css

textstle.css

89 ms

column_style.css

column_style.css

86 ms

grn_style.css

grn_style.css

126 ms

lightbox.css

lightbox.css

114 ms

main.css

main.css

99 ms

prototype.js

prototype.js

123 ms

effects.js

effects.js

150 ms

lightbox.js

lightbox.js

167 ms

include_new.js

include_new.js

165 ms

iepngfix_tilebg.js

iepngfix_tilebg.js

147 ms

grn_body_bg.jpg

grn_body_bg.jpg

158 ms

r_logo.png

r_logo.png

114 ms

catalog_grn_top_banner.jpg

catalog_grn_top_banner.jpg

116 ms

r_orange_arrow.gif

r_orange_arrow.gif

31 ms

g_left_brand_menu_top.png

g_left_brand_menu_top.png

114 ms

g_left_brand_menu_mid.png

g_left_brand_menu_mid.png

113 ms

g_left_inner_brand_menu_top.png

g_left_inner_brand_menu_top.png

115 ms

g_left_inner_brand_menu_mid.png

g_left_inner_brand_menu_mid.png

116 ms

g_left_inner_brand_menu_border.png

g_left_inner_brand_menu_border.png

117 ms

b_mid_content_box_top2.png

b_mid_content_box_top2.png

126 ms

b_mid_content_box_mid2.jpg

b_mid_content_box_mid2.jpg

115 ms

bikeparts-catalog-main.jpg

bikeparts-catalog-main.jpg

200 ms

BRAND-019.jpg

BRAND-019.jpg

143 ms

SB4X-003.JPG

SB4X-003.JPG

216 ms

BCOM-015.jpg

BCOM-015.jpg

183 ms

b_first_mid_content_box_bottom2.png

b_first_mid_content_box_bottom2.png

159 ms

b_top_image_text.gif

b_top_image_text.gif

193 ms

et_othe_img.jpg

et_othe_img.jpg

205 ms

rt2.gif

rt2.gif

194 ms

spacer.gif

spacer.gif

217 ms

et_defa_hid.jpg

et_defa_hid.jpg

232 ms

et_defa_t02.gif

et_defa_t02.gif

238 ms

et_defa_t03.gif

et_defa_t03.gif

237 ms

et_defa_t04.gif

et_defa_t04.gif

239 ms

et_defa_t05.gif

et_defa_t05.gif

247 ms

et_defa_t06.gif

et_defa_t06.gif

247 ms

tit_american.gif

tit_american.gif

271 ms

et_defa_t07.gif

et_defa_t07.gif

267 ms

et_defa_t08.gif

et_defa_t08.gif

299 ms

tit_big-scoot.gif

tit_big-scoot.gif

281 ms

tit_mini-scoot.gif

tit_mini-scoot.gif

281 ms

et_defa_mota.gif

et_defa_mota.gif

280 ms

et_defa_t09.gif

et_defa_t09.gif

296 ms

et_defa_t17.gif

et_defa_t17.gif

305 ms

tit_inject.gif

tit_inject.gif

313 ms

et_defa_t10.gif

et_defa_t10.gif

315 ms

et_defa_t11.gif

et_defa_t11.gif

291 ms

et_defa_t12.gif

et_defa_t12.gif

223 ms

et_defa_t13.gif

et_defa_t13.gif

234 ms

et_defa_t14.gif

et_defa_t14.gif

231 ms

et_defa_t15.gif

et_defa_t15.gif

237 ms

et_defa_t16.gif

et_defa_t16.gif

239 ms

et_defa_t01.gif

et_defa_t01.gif

242 ms

grey.jpg

grey.jpg

255 ms

mnt2.gif

mnt2.gif

260 ms

grar.gif

grar.gif

255 ms

spacer.gif

spacer.gif

241 ms

grn_footer_bg.jpg

grn_footer_bg.jpg

253 ms

loading.gif

loading.gif

54 ms

closelabel.gif

closelabel.gif

53 ms

Accessibility Review

bolt.jp accessibility score

84

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

bolt.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

bolt.jp SEO score

55

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bolt.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Bolt.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

bolt.jp

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