Tools & Wizards About Us
railf.jp screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

railf.jp

鉄道ファン・railf.jp

Page Load Speed

3.2 sec in total

First Response

557 ms

Resources Loaded

2.4 sec

Page Rendered

227 ms

railf.jp screenshot

About Website

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

月刊『鉄道ファン』公式サイト

Visit railf.jp

Key Findings

We analyzed Railf.jp page load time and found that the first response time was 557 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

railf.jp performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value6,950 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.268

46/100

15%

TTI (Time to Interactive)

Value39.8 s

0/100

10%

Network Requests Diagram

railf.jp

557 ms

railf.jp

959 ms

gtm.js

71 ms

icon

52 ms

css2

93 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Railf.jp, 39% (18 requests) were made to Cdn3.railf.jp and 15% (7 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (959 ms) belongs to the original domain Railf.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 93.4 kB (7%)

Content Size

1.3 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Railf.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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 751.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 51.1 kB

  • Original 63.0 kB
  • After minification 61.5 kB
  • After compression 11.9 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 51.1 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 3.9 kB

  • Original 751.9 kB
  • After minification 748.0 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. Railf images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.1 kB

  • Original 374.3 kB
  • After minification 374.3 kB
  • After compression 373.2 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

-61%

Potential reduce by 37.3 kB

  • Original 61.2 kB
  • After minification 48.7 kB
  • After compression 24.0 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. Railf.jp needs all CSS files to be minified and compressed as it can save up to 37.3 kB or 61% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (43%)

Requests Now

42

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Railf. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

railf.jp

railf.jp

557 ms

railf.jp

railf.jp

959 ms

gtm.js

gtm.js

71 ms

icon

icon

52 ms

css2

css2

93 ms

style_article.css

style_article.css

41 ms

jquery.min.js

jquery.min.js

45 ms

ats.js

ats.js

247 ms

gpt.js

gpt.js

231 ms

cse.js

cse.js

91 ms

7PeFkFP9ewZn0PnHe0dL.js

7PeFkFP9ewZn0PnHe0dL.js

795 ms

miDrXTYXryw8z5jsPaq1.js

miDrXTYXryw8z5jsPaq1.js

799 ms

lazyload.min.js

lazyload.min.js

50 ms

js

js

90 ms

js

js

41 ms

railf_white_w110h40.png

railf_white_w110h40.png

61 ms

202406.jpg

202406.jpg

79 ms

rf2406_008.jpg

rf2406_008.jpg

79 ms

spacer.gif

spacer.gif

78 ms

national_banner_300_50px_2023.jpg

national_banner_300_50px_2023.jpg

77 ms

vicom_banner_300_50px_202011.jpg

vicom_banner_300_50px_202011.jpg

78 ms

showa_banner_300_50px.jpg

showa_banner_300_50px.jpg

143 ms

super_bellz_300_50.gif

super_bellz_300_50.gif

132 ms

jrc_300x60.gif

jrc_300x60.gif

132 ms

180915_library_300.png

180915_library_300.png

132 ms

05.png

05.png

85 ms

sq240503_marui_sumidafes.jpg

sq240503_marui_sumidafes.jpg

132 ms

sq240203_mitake_omoide.jpg

sq240203_mitake_omoide.jpg

141 ms

pubads_impl.js

pubads_impl.js

56 ms

hES36X5pHAIBjmS84VL0Bue83nU.ttf

hES36X5pHAIBjmS84VL0Bue83nU.ttf

377 ms

hESq6X5pHAIBjmS84VL0Bue85skjZWE.ttf

hESq6X5pHAIBjmS84VL0Bue85skjZWE.ttf

586 ms

cse_element__en.js

cse_element__en.js

99 ms

default+en.css

default+en.css

131 ms

default.css

default.css

133 ms

bottom_new_ebooks_336x36_d97c0b.svg

bottom_new_ebooks_336x36_d97c0b.svg

17 ms

bottom_new_more_336x36_d97c0b.svg

bottom_new_more_336x36_d97c0b.svg

6 ms

bottom_new_rank_336x36_d97c0b.svg

bottom_new_rank_336x36_d97c0b.svg

83 ms

js

js

73 ms

async-ads.js

async-ads.js

49 ms

branding.png

branding.png

46 ms

clear.png

clear.png

56 ms

nav_logo114.png

nav_logo114.png

57 ms

analytics.js

analytics.js

23 ms

collect

collect

34 ms

collect

collect

11 ms

ga-audiences

ga-audiences

62 ms

Accessibility Review

railf.jp accessibility score

75

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

High

Image elements do not have [alt] attributes

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

railf.jp best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

railf.jp SEO score

91

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

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 Railf.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 Railf.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

railf.jp

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