URL Inspection: https://www.app.classcalc.com

Open Cached · just now

UP

HTTP Status

200

Ping

24 ms

Technologies

11

Technologies Detected

Infrastructure & Network (6)

DNS Provider	Google DNS https://dns.google
Evidence: • DNS Record NS: ns-cloud-e1.googledomains.com (root domain: classcalc.com) • DNS Record NS: ns-cloud-e2.googledomains.com (root domain: classcalc.com) • DNS Record NS: ns-cloud-e3.googledomains.com (root domain: classcalc.com) • DNS Record NS: ns-cloud-e4.googledomains.com (root domain: classcalc.com)

Email Provider	Google Mail https://workspace.google.com/products/gmail/
Evidence: • DNS Record MX: aspmx.l.google.com (root domain: classcalc.com) • DNS Record MX: alt2.aspmx.l.google.com (root domain: classcalc.com) • DNS Record MX: alt1.aspmx.l.google.com (root domain: classcalc.com) • DNS Record MX: alt4.aspmx.l.google.com (root domain: classcalc.com) • DNS Record MX: alt3.aspmx.l.google.com (root domain: classcalc.com)

Hosting Provider	Google Cloud https://cloud.google.com
Evidence: • IP 35.224.55.193 → ASN 396982

Registrar	GoDaddy https://godaddy.com
Evidence: • WHOIS Registrar: GoDaddy.com, LLC

Storage	Google Cloud Storage https://cloud.google.com/storage
Evidence: • HTML <img>: https://storage.googleapis.com/classcalc-assets/error-round-tr.svg • HTML <img>: https://storage.googleapis.com/classcalc-assets/chrome-logo.svg • HTML <img>: https://storage.googleapis.com/classcalc-assets/firefox-logo.svg • HTML <img>: https://storage.googleapis.com/classcalc-assets/safari-logo.svg • HTML <img>: https://storage.googleapis.com/classcalc-assets/edge-logo.svg ... and 2 more

Web Server	Nginx https://nginx.org	1.10.3
Evidence: • Header Server: nginx/1.10.3

Analytics & Marketing (2)

Analytics	Google Console https://search.google.com/search-console
Evidence: • DNS Record TXT: google-site-verification=0dKQdLoO3ZQn_l2r4rDUyUNqetlgykKy3eYrJDM4zgc (root domain: classcalc.com)

Analytics	Google Tag Manager https://tagmanager.google.com
Evidence: • Resource Hint: https://www.googletagmanager.com

Security & Privacy (1)

Whois Privacy	Domains By Proxy https://www.godaddy.com/agreements/showdoc?pageid=PRIVACY
Evidence: • WHOIS Organization: Domains By Proxy, LLC

SSL & Certificates (2)

Certificate Authority	Google Trust https://pki.goog
Evidence: • DNS Record CAA: pki.goog (root domain: classcalc.com)

Certificate Authority	Let's Encrypt https://letsencrypt.org
Evidence: • DNS Record CAA: letsencrypt.org (root domain: classcalc.com) • SSL Certificate Issuer: C=US, O=Let's Encrypt, CN=R12

Metadata & SEO

Title

ClassCalc | The Most Powerful Graphing Calculator You Can Use On Tests

Language

en

Viewport

width=device-width,initial-scale=1

Domain Owner Information

View Full WHOIS

Registrar

GoDaddy.com, LLC

Created

July 26, 2017

8 years 129 days old

Expires

July 26, 2027

1 years 237 days left

SSL/TLS Certificate

View Full SSL Report

Issued By

C=US, O=Let's Encrypt, CN=R12

Security Score

68 /100

Network & Hosting

View DNS Records

35.224.55.193 • AS396982

Google Cloud

Reverse DNS: 193.55.224.35.bc.googleusercontent.com

CNAME Record

This domain is an alias for:

app.classcalc.com

Resources

classcalc.com (4 resources)

Scripts (2)

Stylesheets (1)

• https://www.app.classcalc.com/classcalc.71f2c379233fc6293ce5.bundle.css

Resource Hints (1)

• preconnect https://app.classcalc.com

google-analytics.com (1 resources)

Resource Hints (1)

• preconnect https://www.google-analytics.com

googleapis.com (6 resources)

Images (5)

Resource Hints (1)

• preconnect https://storage.googleapis.com

googletagmanager.com (1 resources)

Resource Hints (1)

• preconnect https://www.googletagmanager.com

Inspected on December 22, 2025 at 23:47 UTC