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

Quick Summary

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 03/21/2023

Over the time railstutorial.jp has been ranked as high as 9,896 in the world.

Railstutorial.jp receives about 450 unique visitors and 1,350 pageviews per day. The estimated value of railstutorial.jp is 17,520 USD. Each unique visitor makes about 3 pageviews on average.

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

At the time of the last check (June 17, 2019) railstutorial.jp has an expired SSL certificate (expired on August 26, 2019).

According to Google Safe Browsing, Google Safe Search and Symantec railstutorial.jp is quite a safe domain.

Mobile-Friendly test indicates that 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

Global Rank

493,181

Average Load Time

2.51sec

Links In Count

Website Value

$17,520

How popular is railstutorial.jp?

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

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%

Period	Global Rank	Global Rank Delta
past 3 months	493181	370102

Railstutorial.jp Alexa Rank History

Alexa Rank shows how popular railstutorial.jp is in comparison with other sites. The most popular site has Alexa Rank equals 1. If railstutorial.jp has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to railstutorial.jp and pageviews on railstutorial.jp over the past 3 months.

Railstutorial.jp Safety Information

Overview

Last Updated: 05/07/2024

Overall result - "railstutorial.jp" is SAFE.
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

Last Updated: 03/23/2024

railstutorial.jp is safe.

Norton ConnectSafe evaluates railstutorial.jp for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 03/16/2019

railstutorial.jp is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

Malware not found at "railstutorial.jp".
"railstutorial.jp" is not a phishing page.
"railstutorial.jp" does not install unwanted software.
"railstutorial.jp" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/23/2021

railstutorial.jp is safe.

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

Last Updated: 05/07/2024

railstutorial.jp child safety isunknown.

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.

SSL Information

SSL Checker Tool

Domain	railstutorial.jp
Issuer	Let's Encrypt Authority X3
Algorithm	RSA-SHA256
Valid form	05/28/2019
Expiration	08/26/2019
Signed	Certificate is not self signed
Additional Domains	railstutorial.jp www.railstutorial.jp

Railstutorial.jp Server Information

Server Location

Geolocation Tool

Not Found

ASN Information

ASN Lookup Tool

ASN ID: 14618
ASN Title: AMAZON-AES - Amazon.com, Inc., US

Last Update: 01/04/2024

ASN Whois

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 14618
ASName: AMAZON-AES
ASHandle: AS14618
RegDate: 2005-11-04
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/14618

OrgName: Amazon.com, Inc.
OrgId: AMAZO-4
Address: Amazon Web Services, Inc.
Address: P.O. Box 81226
City: Seattle
StateProv: WA
PostalCode: 98108-1226
Country: US
RegDate: 2005-09-29
Updated: 2017-01-28
Comment: For details of this service please see
Comment: http://ec2.amazonaws.com/
Ref: https://rdap.arin.net/registry/entity/AMAZO-4

OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-266-4064
OrgNOCEmail: amzn-noc-contact@amazon.com
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

RTechHandle: ANO24-ARIN
RTechName: Amazon EC2 Network Operations
RTechPhone: +1-206-266-4064
RTechEmail: amzn-noc-contact@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Railstutorial.jp Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

[ JPRS database provides information on network administration. Its use is ]
[ restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]

Domain Information: [ドメイン情報]
[Domain Name] RAILSTUTORIAL.JP

[登録者名] ヤスラボ
[Registrant] YasuLab

[Name Server] ns2.gehirndns.org
[Name Server] ns2.gehirndns.net
[Name Server] ns2.gehirndns.com
[Name Server] ns2.gehirndns.jp
[Signing Key]

[登録年月日] 2013/06/12
[有効期限] 2022/06/30
[状態] Active
[最終更新] 2021/07/01 01:05:10 (JST)

Contact Information: [公開連絡窓口]
[名前] YassLab 株式会社
[Name] YassLab Inc.
[Email] info@yasslab.jp
[Web Page]
[郵便番号] 169-0075
[住所] 東京都新宿区
高田馬場 1-28-10
三慶ビル4F CASE Shinjuku
[Postal Address] Shinjuku-ku
1-28-10 Takadanobaba
Sankei Building 4F CASE Shinjuku
[電話番号] 050-5809-7823
[FAX番号]

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Railstutorial.jp HTML Validation

HTML Validation Tool

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.)

Railstutorial.jp Desktop Insights

Desktop Page Insights Tool

Last tested: 08/26/2015

Desktop

Desktop 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

Desktop Resource Breakdown

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

Railstutorial.jp Mobile Insights

Mobile Page Insights Tool

Last tested: 08/26/2015

Mobile

Mobile Usability

59%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Size content to viewport

Mobile Speed

67%

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

Leverage browser caching

Enable compression

Optimize images

Minify CSS

Minify HTML

Minify JavaScript

Mobile Resource Breakdown

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

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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。

Quick Summary

Railstutorial.jp General Information

Railstutorial.jp Alexa Rank History

Railstutorial.jp Safety Information

Railstutorial.jp Server Information

Railstutorial.jp Domain Name Information

Railstutorial.jp HTML Validation

Railstutorial.jp Desktop Insights

Railstutorial.jp Mobile Insights

Railstutorial.jp Nearest Competitors

Railstutorial.jp Typos