Link Check results for netcalc.online

No Security Risks Detected

This domain appears to be safe and secure

100%

Score

Disclaimer: This assessment is based on automated analysis of publicly available information. Results are for informational purposes only. For critical applications, consult security professionals.

Scan Information

Last checked:April 6, 2026 04:36:25

Target URL:https://netcalc.online

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Page Information

Target URL

https://netcalc.online

Page Title

Subnet Mask Calculator – Free IP Subnet

Site Favicon

Status

Active

Host Information

Domain

netcalc.online

Server

cloudflare

Country

United States

IP Address

104.21.44.60

ASN Information

13335

CLOUDFLARENET

Technologies

Netlify

PaaS

HSTS

Security

Google Analytics

Analytics

Cloudflare Browser Insights

Analytics

Cloudflare

CDN

HTTP/3

Miscellaneous

SSL Certificate

HTTPS Enabled

Secure

Certificate Issuer

N/A

Valid From

2026-04-05 04:36:29

Valid Until

2027-04-06 04:36:29

Subject Name

netcalc.online

Performance Statistics

Total Requests

Domains

IP Addresses

585.31 KB

Transfer Size

Content Size909.49 KB

HTTP Headers

Age

52082

CF-RAY

9e7e1783b9ae3094-SEA

Cache-Control

public,max-age=0,must-revalidate

Connection

keep-alive

Content-Encoding

zstd

Content-Type

text/html; charset=UTF-8

Date

Mon, 06 Apr 2026 04:36:29 GMT

Nel

{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}

Report-To

{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=CltfbMqqYwbrfea3JUfNiILtf9KxAr43Gk7Xu9Vw70dS6VHRhdNIR50nfOGDmhRt0nJ3oP77U1Ja5lBEFVATtBZXXTVTAUm8%2B18Ho6XumVEwFtjbjC30AbFmp0Go83gMmA%3D%3D"}]}

Server

cloudflare

Server-Timing

cfCacheStatus;desc="DYNAMIC" cfEdge;dur=18,cfOrigin;dur=155

Transfer-Encoding

chunked

alt-svc

h3=":443"; ma=86400

cache-status

"Netlify Edge"; hit

cf-cache-status

DYNAMIC

strict-transport-security

max-age=31536000

vary

Accept-Encoding

x-nf-request-id

01KNGH7VQDSVBH2AHSS5T39Y2E

18 headers detected

Technology Stack Analysis

Netlify

PaaSCDN

Netlify providers hosting and server-less backend services for web applications and static websites.

HSTS

Security

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Google Analytics

Analytics

Google Analytics is a free web analytics service that tracks and reports website traffic.

Cloudflare Browser Insights

AnalyticsRUM

Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.

Cloudflare

CDN

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

HTTP/3

Miscellaneous

HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.

Website Cookies 2

_ga

.netcalc.online

Value

GA1.1.1523516667.1775450190

Expires:5/11/2027

_ga_5VV0C3T39P

.netcalc.online

Value

GS2.1.s1775450189$o1$g0$t1775450189$j60$l0$h0

Expires:5/11/2027