Railstutorial.jp Ruby on Rails チュートリアル：プロダクト開発の０→１を学ぼう

SNS開発やWebサイト制作が学べる大型チュートリアル。作りながら学ぶのが特徴で、電子書籍や解説動画、質問対応、社員研修、教材利用にも対応しています。

Railstutorial.jp Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 07/03/2024

Railstutorial.jp traffic estimate is about 450 unique visitors and 1,350 pageviews per day. The approximated value of railstutorial.jp is 17,520 USD. Every unique visitor makes about 3 pageviews on average.

Alexa Traffic Rank estimates that railstutorial.jp is ranked number 9,896 in the world.

Railstutorial.jp is registered under .JP top-level domain. Check other websites in .JP zone.

During the last check (July 02, 2024) railstutorial.jp has a valid and up-to-date SSL certificate issued by Let's Encrypt that expires on August 04, 2024, please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by Let's Encrypt.

In accordance with Google Safe Browsing, Google Safe Search and Symantec railstutorial.jp is pretty a safe domain.

Relying on Google Mobile-Friendly test railstutorial.jp isn't optimized for mobile and tablet devices. Designing your websites to be mobile friendly ensures that your pages perform well on all devices.

Railstutorial.jp General Information

Railstutorial.jp Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors

Railstutorial.jp Traffic Distribution

Where do visitors go on railstutorial.jp?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews

Railstutorial.jp Popularity

How popular is railstutorial.jp?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	493181	370102

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	461045	322965	8	-77.312%	3	40%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	543887	418957	9	-83.348%

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Railstutorial.jp Safety Information

Rankchart Summary

Safe

Updated: 07/03/2024

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 03/23/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 03/16/2019

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 02/23/2021

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McAfee assesses railstutorial.jp for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze railstutorial.jp for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Not Checked

Updated: 07/03/2024

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The WOT calculates reputation of the railstutorial.jp. This reputation system receives ratings from users and information from third-party sources, assesses the railstutorial.jp for safety features and confirms, whether railstutorial.jp is suitable for children.

Railstutorial.jp SSL Information

Information about SSL/TLS certificates

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Domain	railstutorial.jp
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	05/06/2024
Expiration	08/04/2024
Signed	Certificate is not self signed
Additional Domains	railstutorial.jp

SSL Checker

Railstutorial.jp Server Information

Railstutorial.jp Server Location

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Railstutorial.jp ASN Information

Information about IP address owner

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ASN ID: 14618

ASN Title: AMAZON-AES - Amazon.com, Inc., US

Updated: 01/04/2024

Raw ASN data:

Geolocation

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Railstutorial.jp Domain Name Information

Railstutorial.jp DNS Information

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A

Host	A Record	TTL

Railstutorial.jp Whois Information

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Railstutorial.jp HTML Validation

Railstutorial.jp W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.

Bad value “300px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “100px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “20px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Bad value “150px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

The “font” element is obsolete. Use CSS instead.

The “center” element is obsolete. Use CSS instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.

The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

HTML Validator

Railstutorial.jp Desktop Performance

How Well Railstutorial.jp Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

72%

Leverage browser caching

Enable compression

Optimize images

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Minify HTML

Minify CSS

Minify JavaScript

Updated: 08/26/2015

Railstutorial.jp Mobile Performance

How Optimized Is Railstutorial.jp for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

59%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Size content to viewport

Updated: 08/26/2015

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Total Resources	80
Number of Hosts	23
Static Resources	47
JavaScript Resources	22
CSS Resources	8

CSS	165.3 KBytes
Images	236.0 KBytes
HTML	286.6 KBytes
JavaScript	1.4 MBytes
Other	2.8 KBytes

Total Resources	62
Number of Hosts	20
Static Resources	37
JavaScript Resources	19
CSS Resources	8

CSS	164.2 KBytes
Images	184.4 KBytes
HTML	210.1 KBytes
JavaScript	1.1 MBytes
Other	2.1 KBytes