Keisan.site 高精度計算サイト

計算の正確さ、使いやすさ、楽しさを追求した本格的な計算サイトです。メタボが気になる方の健康計算、旧暦や九星のこよみ計算、日曜大工で活用される斜辺や面積の計算、高度な実務や研究で活きる高精度な特殊関数や統計関数など多彩なコンテンツがあります。


Keisan.site Overview

Keisan.site belongs to AMAZON-02 - Amazon.com, Inc., US. Check the list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.

In terms of rank-to-traffic ratio, keisan.site has 8,502 unique users per day, viewing 33,975 pages. The rank based value of keisan.site is 51,957 USD. Every user makes 4.28 pageviews on average.

Keisan.site boasts a link base consisting of 596 referring domains and 1300 external backlinks, as revealed by the data obtained from web network scanning.

Keisan.site top-level domain belongs to .SITE domain zone. Check other webpages in .SITE zone.

According the last verification test in July 19, 2025, keisan.site has a valid and up-to-date SSL certificate issued by Amazon , certificate expiration date: June 26, 2026. Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Amazon.

Based on data from Symantec keisan.site is a fairly safe domain.

Keisan.site Website Safety

logo
Overview
Last Updated: 07/26/2025
Unknown status.
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 logo
Norton Connect Safe
Last Updated: 07/19/2025
keisan.site is safe.
Norton ConnectSafe evaluates keisan.site for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 07/26/2025
Not yet checked.
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 brwosing logo
Google Safe Browsing
Last Updated: 07/26/2025
McAfee logo
Site Advisor
Last Updated: 07/26/2025
Not yet checked.
McAfee assesses keisan.site 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 keisan.site for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 07/26/2025
keisan.site child safety is unknown.
The WOT calculates reputation of the keisan.site. This reputation system receives ratings from users and information from third-party sources, assesses the keisan.site for safety features and confirms, whether keisan.site is suitable for children.

SSL Information
Domainkeisan.site
Issuer OrganizationAmazon
IssuerAmazon RSA 2048 M02
AlgorithmRSA-SHA256
Valid form05/28/2025
Expiration06/26/2026
SignedCertificate is not self signed
Additional Domains keisan.site
www.keisan.site

Keisan.site Rank History

Keisan.site Hosting Information

Server Location

ASN Information

ASN ID: 16509

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

Last Update: 07/19/2025

#
# 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.
#

Keisan.site Domain Registration and Settings

WHOIS

keisan.site domain is not supported


DNS Records
HostA RecordTTL
keisan.site108.139.10.8760
keisan.site108.139.10.9060
keisan.site108.139.10.7360
keisan.site108.139.10.12460
HostMX RecordPriorityTTL
keisan.sitesmtp.google.com160
HostNS RecordTTL
keisan.sitens-1040.awsdns-02.org172800
keisan.sitens-1958.awsdns-52.co.uk172800
keisan.sitens-408.awsdns-51.com172800
keisan.sitens-555.awsdns-05.net172800
HostTXT RecordTTL
keisan.sitegoogle-site-verification=Nx5tB8h9n02_cGa7vSf6ZJXxFQPD22b9c-SJDlg3fQo60
keisan.sitegoogle-site-verification=zuN6RJ3PcpbIdv6jcBIWO0QfUMqh-MXtc8YlxMuVbZM60

ns-1958.awsdns-52.co.uk
TTL: 900
Email address: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum: 86400

Keisan.site HTML Check

not found

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