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Mdcalc.com Summary


Mdcalc.com was created 19 years ago. Receives approximately 880,920 unique visitors per month. Server is located in United States, IP address 172.67.194.4.

Website Info


Creation date 2005-11-24
Expiration date 2025-11-24
Registrar NameCheap, Inc.
Name servers
  1. janet.ns.cloudflare.com
  2. vick.ns.cloudflare.com
IP address 172.67.194.4
Server located United States
Host name 172.67.194.4

Alexa Traffic Ranks


Global Rank 55,795
Delta (90 Days) -4,827
Most Popular In Country United States
Country Rank 23,686

Whois info


   Domain Name: MDCALC.COM

   Registry Domain ID: 266184768_DOMAIN_COM-VRSN

   Registrar WHOIS Server: whois.namecheap.com

   Registrar URL: http://www.namecheap.com

   Updated Date: 2018-01-25T13:21:42Z

   Creation Date: 2005-11-23T22:57:47Z

   Registry Expiry Date: 2025-11-23T22:57:47Z

   Registrar: NameCheap, Inc.

   Registrar IANA ID: 1068

   Registrar Abuse Contact Email: abuse@namecheap.com

   Registrar Abuse Contact Phone: +1.6613102107

   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited

   Name Server: JANET.NS.CLOUDFLARE.COM

   Name Server: VICK.NS.CLOUDFLARE.COM

   DNSSEC: unsigned

   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/

DNS Records


Host Type TTL Data
mdcalc.com A 300 ip: 172.67.194.4
mdcalc.com A 300 ip: 104.21.12.91
mdcalc.com MX 300 pri: 0
target: aspmx.l.google.com
mdcalc.com MX 300 pri: 5
target: alt1.aspmx.l.google.com
mdcalc.com MX 300 pri: 5
target: alt2.aspmx.l.google.com
mdcalc.com MX 300 pri: 10
target: aspmx2.googlemail.com
mdcalc.com MX 300 pri: 10
target: aspmx3.googlemail.com
mdcalc.com NS 86400 target: janet.ns.cloudflare.com
mdcalc.com NS 86400 target: vick.ns.cloudflare.com
mdcalc.com SOA 3600 mname: janet.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2037621138
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 3600
mdcalc.com TXT 120 txt: v=spf1 include:servers.mcsv.net ?all
mdcalc.com TXT 120 txt: google-site-verification=ZAFax3K27FynA2oj-yIbnu66rjfQOVgN3NoSJenBLKc
mdcalc.com TXT 120 txt: google-site-verification=eQSyOHCIPicVd4zLS1IPavbFJukUWLlbWZlhndo0HMk
mdcalc.com TXT 120 txt: google-site-verification=z8frn5BESd-X20KPHEhKpiDrpo7gz9Gx8reIJHBIAEA

HTTP Headers


Date: Fri, 20 Nov 2020 22:48:48 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: *
Access-Control-Allow-Methods: GET,POST
Access-Control-Allow-Origin: *
Cache-Control: public, max-age=0
Last-Modified: Tue, 10 Nov 2020 18:54:24 GMT
Set-Cookie: country=US; Path=/
Set-Cookie: server-uomsystem=US; Path=/
Vary: Accept-Encoding
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
CF-Cache-Status: DYNAMIC
cf-request-id: 0689719c1d000073a580802000000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=pSkRq2c1wcczyqn0x0n9E0j0sdX4k9%2FndJ5tuKTgHVSImMdkvWw0IRbvQy8gw1EGQ5kKo%2FeeUELhH8QOPaKC5XIor5HOXb5LtM2vchYodQ%3D%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 5f55b8736b9873a5-IAD
x-encoded-content-encoding: gzip

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