Rfs.jp プログラミングとサイト構築の情報が集まるウェブマガジン "SMART"

SmartはHTML5やCSS3、JavaScript、SQL、Ajax、PerlやSEOといったWEBに関連した技術を初心者にもわかりやすく丁寧に解説してるWEB講座です。

Rfs.jp Overview

Rfs.jp ranking shows that the page is at position 227,531 over the world, while the bulk of its audience is from Japan, where it ranks 17,405.

In terms of rank-to-traffic ratio, rfs.jp has 2,702 unique users per day, viewing 3,242 pages. The rank based value of rfs.jp is 56,822 USD. Every user makes 1.28 pageviews on average.

Rfs.jp boasts a link base consisting of 248 referring domains and 309 external backlinks, as revealed by the data obtained from web network scanning.

Rfs.jp top-level domain belongs to .JP domain zone. Check other webpages in .JP zone.

According the last verification test in December 30, 2022, rfs.jp has an expired SSL certificate issued by Amazon (expired on January 01, 2024). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Amazon.

Based on data from Google Safe Browsing, Google Safe Search and Symantec rfs.jp is a fairly safe domain.

According the Mobile-Friendly test by Google rfs.jp is nice optimized for mobile devices and tablets.

Rfs.jp Rank Summary

Global Rank

227,531

Average Load Time

0.84sec

Links In Count

193

Website Value

$52,613

Audience Geography. Where are rfs.jp visitors located?

Country	Visitors
Japan JP	99%
Other	1%

Country	Pageviews
Japan JP	99.1%
Other	0.9%

Country	Rank
Japan JP	17405

Where do visitors go on rfs.jp?

Subdomain	Pageviews
rfs.jp	100%

Subdomain	Pageviews per User
rfs.jp	1.1

Subdomain	Reach
rfs.jp	100%

How popular is rfs.jp?

Period	Global Rank	Global Rank Delta
past 3 months	227531	-45703
past month	201167	-75073
past week	191534	48430
yesterday	58378	0

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	364350	-78037	1	30%	1.2	3%
30	337944	-145321	12	60%	1.1	10%
7	323545	87159	1	-33.14%	1	-6.25%
1	105170	0	6	0%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	189137	-35515	31	30%
30	163566	-52979	38	40%
7	159563	39276	4	-28.91%
1	49736	0	20	0%

Rfs.jp Website Safety

Overview

Last Updated: 12/28/2024

Overall result - rfs.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: 03/22/2024

rfs.jp is safe.

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

Google Safe Search

Last Updated: 10/18/2016

rfs.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

rfs.jp is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

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: 02/22/2021

rfs.jp is safe.

McAfee assesses rfs.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 rfs.jp for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 12/28/2024

rfs.jp child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	rfs.jp
Issuer Organization	Amazon
Issuer	Amazon
Algorithm	RSA-SHA256
Valid form	12/03/2022
Expiration	01/01/2024
Signed	Certificate is not self signed
Additional Domains	rfs.jp

Rfs.jp Rank History

Alexa Rank shows how popular rfs.jp is in comparison with other sites. The most popular site has Alexa Rank equals 1. If rfs.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 rfs.jp and pageviews on rfs.jp over the past 3 months.

Rfs.jp Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 16509

ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 07/30/2024

#
# 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: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

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

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

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-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.
#

Rfs.jp Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

[ 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] RFS.JP

[登録者名] （登録者からの申請により非表示）
詳細は→https://jprs.jp/about/dom-rule/whois-concealment/
[Registrant] (Not displayed by registrant's request)
For details -> https://jprs.jp/about/dom-rule/whois-concealment/ (only in Japanese)

[Name Server] ns-2034.awsdns-62.co.uk
[Name Server] ns-1138.awsdns-14.org
[Name Server] ns-874.awsdns-45.net
[Name Server] ns-169.awsdns-21.com
[Signing Key]

[登録年月日] 2002/04/11
[有効期限] 2025/04/30
[状態] Active
[最終更新] 2024/05/01 01:05:04 (JST)

Contact Information: [公開連絡窓口]
[名前] Whois情報公開代行サービス by お名前.com
[Name] Whois Privacy Protection Service by onamae.com
[Email] proxy@whoisprotectservice.com
[Web Page]
[郵便番号] 150-8512
[住所] 東京都渋谷区
桜丘町 26-1
セルリアンタワー 11階
[Postal Address] Shibuya-ku
26-1 Sakuragaoka-cho
Cerulean Tower 11F
[電話番号] +81.354562560
[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

Rfs.jp HTML Check

HTML Validation Tool

Errors

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Bad value “2017年10月29日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年8月22日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年8月18日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年8月7日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年8月2日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年7月27日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年7月19日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年5月9日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Bad value “2017年4月25日” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Attribute “width” not allowed on element “a” at this point.

Attribute “allow” not allowed on element “iframe” at this point.

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

Attribute “border” not allowed on element “iframe” at this point.

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

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

Stray end tag “div”.

Warnings

Empty heading.

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

Rfs.jp Desktop Performance

Last tested: 11/30/2017

Desktop Speed

79%

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

Optimize images

Leverage browser caching

Prioritize visible content

Minify CSS

Enable compression

Desktop Resource Breakdown

Total Resources	59
Number of Hosts	18
Static Resources	32
JavaScript Resources	17
CSS Resources	7

Rfs.jp Mobile Insights

Last tested: 11/30/2017

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

63%

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

Reduce server response time

Leverage browser caching

Optimize images

Minify CSS

Enable compression

Mobile Resource Breakdown

Total Resources	60
Number of Hosts	18
Static Resources	32
JavaScript Resources	17
CSS Resources	7

Rfs.jp Common Typos

www.rfs.com
www.rfs.net
www.rfs.org
www.rfs.info
www.rfs.biz
www.rfs.us
www.rfs.mobi
www.fs.jp
www.rfs.jp
www.efs.jp
www.refs.jp
www.erfs.jp
www.dfs.jp
www.rdfs.jp
www.drfs.jp
www.ffs.jp
www.rffs.jp
www.frfs.jp
www.tfs.jp
www.rtfs.jp
www.trfs.jp
www.rs.jp
www.rcs.jp
www.rfcs.jp
www.rcfs.jp
www.rds.jp
www.rfds.jp
www.rrs.jp
www.rfrs.jp
www.rrfs.jp
www.rts.jp
www.rfts.jp
www.rgs.jp
www.rfgs.jp
www.rgfs.jp
www.rvs.jp
www.rfvs.jp
www.rvfs.jp
www.rf.jp
www.rfw.jp
www.rfsw.jp
www.rfws.jp
www.rfe.jp
www.rfse.jp
www.rfes.jp
www.rfd.jp
www.rfsd.jp
www.rfz.jp
www.rfsz.jp
www.rfzs.jp
www.rfx.jp
www.rfsx.jp
www.rfxs.jp
www.rfa.jp
www.rfsa.jp
www.rfas.jp

Rfs.jp プログラミングとサイト構築の情報が集まるウェブマガジン "SMART"

SmartはHTML5やCSS3、JavaScript、SQL、Ajax、PerlやSEOといったWEBに関連した技術を初心者にもわかりやすく丁寧に解説してるWEB講座です。

Rfs.jp Overview

Rfs.jp Rank Summary

Rfs.jp Website Safety

Rfs.jp Rank History

Rfs.jp Hosting Information

Rfs.jp Domain Registration and Settings

Rfs.jp HTML Check

Rfs.jp Desktop Performance

Rfs.jp Mobile Insights

Rfs.jp Similar Audits

Rfs.jp Common Typos