calctool.org

https://calctool.org· First analyzed 25 May 2026· Updated 25 May 2026

This site uses bot protection

The website blocked automated page access (e.g. Cloudflare Turnstile). Only DNS-based modules could be analyzed — hosting, SSL, email infrastructure, and domain info are shown below. Technology stack, SEO, and other page-content modules are unavailable for this site.

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.208.57.159

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Nameservers

ns4.dnsimple.com.ns1.dnsimple.com.ns2.dnsimple.com.ns3.dnsimple.com.

Security Score

71%Good

HTTPS

No WAF

30d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

26.03.2026

Valid Until

24.06.2026

Subject Alternative Names (2)

*.calctool.orgcalctool.org

SHA-256 Fingerprint

2A:16:63:73:4E:51:80:B5:39:65:0B:12:5A:06:42:09:97:D0:9A:B3...

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Email Infrastructure

Mailgun

Score

SPF

DKIM

DMARC

MX Records (2)

mxb.mailgun.org

mxa.mailgun.org

Domain Information

calctool.org

Domain Age

18y 3m

Created

11.02.2008

Expires

11.02.2028

Last Updated

10.02.2025

Registrar

OVH sas

DNSSEC

Not Enabled

Website Identity

calctool.org

18 years old

Location detected: 🇺🇸 United Statesvia ip

OVH sas📧 Mailgun