indexo.dev

npiviewer.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-11 · ok HTTP/1.1 200 5121 ms crawled 2026-05-08

US · 104.21.58.155 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
NPIViewer - Search for Providers
Description
NPIViewer allows healthcare organizations to quickly and easily turn partial provider data into complete provider records ready for use in their health care information system, EMR, or claims processing system.

Technology

CDN
Cloudflare
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • challenges.cloudflare.com×2
  • www.googletagmanager.com×1

Registration

Registrar
NameCheap, Inc.
Created
2013-10-01
Expires
2026-10-01 134 days left
Updated
2026-01-31
Name servers
  • matt.ns.cloudflare.com
  • sharon.ns.cloudflare.com

DNS records live

NS
  • matt.ns.cloudflare.com
  • sharon.ns.cloudflare.com
MX
  • 10 npiviewer-com.mail.protection.outlook.com
TXT
  • MS=ms11862962
  • ms-domain-verification=645b74cb-bfc2-4e7a-a2e3-6eaa500e7275

Email authentication partial

SPF
v=spf1 mx include:spf.protection.outlook.com ip4:198.54.115.117 ip4:198.54.115.245 ip4:69.21.202.171 -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:1e9614724d45433aafc077a7f6be0dca@dmarc-reports.cloudflare.net,mailto:david@npiviewer.com; ruf=mailto:david@npiviewer.com; fo=1;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDqLUNMsZ7PXMf6ZhnVIONXBtnk1IX3PuDlENu77+cwNfzfqt2agvAU8Cz9QglgpKIaTdS+aE/kjDwxnR5Z6r…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0F6MnfAEjbX9u5iPXZwzYduhxO4tVH/HycHux1FvSeM1bSiUEAWQcJGEZgyfc8V88sXY4mfk3Wbdj2mvAD…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsbMLpQ0En+LFUJAoaA6g7x9eIhqNA6v2OUMytVzxopSD2fVdO89VemlrmIxlZKXdBqRh1GtUxIXWVVrgPV…
selectors probed

Certificate (current)

WE1
from 2026-04-01 to 2026-06-30
Expires in 41 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked live page: https://www.npiviewer.com/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Content Security Policy
  • weak frame protection
  • weak content type protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN, SAMEORIGIN
x-content-type-options
nosniff, nosniff
strict-transport-security
max-age=31536000; includeSubDomains; preload, max-age=31557600

Links to (1)

Linked from (7)