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。
Server IP address resolved: Yes
Http response code: 200
Response time: 0.62 sec.
Last Checked: 08/16/2025
Keisan.site traffic volume is 17,137 unique daily visitors and their 85,686 pageviews. The web value rate of keisan.site is 128,400 USD. Each visitor makes around 5.35 page views on average.
Keisan.site belongs to AMAZON-02 - Amazon.com, Inc., US. Check the list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.
Keisan.site registered under .SITE top-level domain. Check other websites in .SITE zone.
The last verification results, performed on (July 19, 2025) keisan.site show that keisan.site has a valid and up-to-date SSL certificate issued by Amazon expiring on June 26, 2026. Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Amazon.
In accordance with Symantec keisan.site is pretty a safe domain.
not found
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 ConnectSafe evaluates keisan.site for any unsafe and insecure content. The results are critical for families with young children.
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.
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.
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.
| Domain | keisan.site |
| Issuer Organization | Amazon |
| Issuer | Amazon RSA 2048 M02 |
| Algorithm | RSA-SHA256 |
| Valid form | 05/28/2025 |
| Expiration | 06/26/2026 |
| Signed | Certificate is not self signed |
| Additional Domains | keisan.site www.keisan.site |
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 is not supported
| Host | A Record | TTL |
|---|---|---|
| keisan.site | 108.139.10.87 | 60 |
| keisan.site | 108.139.10.90 | 60 |
| keisan.site | 108.139.10.73 | 60 |
| keisan.site | 108.139.10.124 | 60 |
| Host | MX Record | Priority | TTL |
|---|---|---|---|
| keisan.site | smtp.google.com | 1 | 60 |
| Host | NS Record | TTL |
|---|---|---|
| keisan.site | ns-1040.awsdns-02.org | 172800 |
| keisan.site | ns-1958.awsdns-52.co.uk | 172800 |
| keisan.site | ns-408.awsdns-51.com | 172800 |
| keisan.site | ns-555.awsdns-05.net | 172800 |
| Host | TXT Record | TTL |
|---|---|---|
| keisan.site | google-site-verification=Nx5tB8h9n02_cGa7vSf6ZJXxFQPD22b9c-SJDlg3fQo | 60 |
| keisan.site | google-site-verification=zuN6RJ3PcpbIdv6jcBIWO0QfUMqh-MXtc8YlxMuVbZM | 60 |
ns-1958.awsdns-52.co.uk
TTL: 900
Email address: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum: 86400
No data
No data
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