rheumatology.org

HTML metadata

Title: American College of Rheumatology
Description: Learn about the American College of Rheumatology, a non-profit, professional association committed to advancing the specialty of rheumatology. The ACR serves nearly 9,100 physicians, health professionals, and scientists worldwide who work in the medical subspecialty of rheumatology.
Language: en
Canonical: https://www.rheumatology.org

Technology

CDN: Vercel
CMS: Next.js

Third-party hosts loaded (2)

apps.elfsight.com×1
platform-api.sharethis.com×1

Social

Contact

Phone

58-1654301

Registration

Registrar

Network Solutions, LLC

Created

1995-10-07

Expires

2026-10-06 138 days left

Updated

2025-05-15

Name servers

ns3-04.azure-dns.org
ns1-04.azure-dns.com
ns2-04.azure-dns.net
ns4-04.azure-dns.info

DNS records live

NS

ns1-04.azure-dns.com
ns2-04.azure-dns.net
ns3-04.azure-dns.org
ns4-04.azure-dns.info

MX

1 rheumatology-org.mail.protection.outlook.com

TXT

00DVG000006lNk5=1TBVG0000000G1Z
00D6A000001j5iq=1TBVS000000052w

Verified for

Anthropic
Apple
Atlassian
Canva
Google
Microsoft
Microsoft 365
Stripe
Zoom

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:autotask.net include:_spf.saashr.com include:sendgrid.net ip4:52.73.203.75 ip4:44.193.121.189 ip4:76.223.136.223 ip4:76.223.136.224 ip4:159.183.151.104 ip4:208.117.52.113 ip4:104.18.6.51 ip4:104.18.7.51 ip4:104.18.30.23 ip4:104.18.31.23 ip4:34.102.239.211 ip4:129.159.87.137 ip4:132.145.13.209 ip4:132.226.49.32 ip4:129.80.67.121 ip4:152.70.155.126 ip4:158.101.211.207 ip4:141.148.159.229 ip4:129.153.62.216 ip4:129.154.255.129 ip4:129.159.22.159 ip4:129.153.168.146 ip4:164.152.25.241 ip4:192.18.139.154 ip4:64.181.194.190 ip4:132.226.26.225 ip4:129.151.67.221 ip4:130.162.39.83 ip4:144.24.6.140 ip4:129.80.5.164 ip4:129.153.194.228 ip4:129.153.104.71 ip4:132.226.56.24 ip4:193.122.128.100 ip4:193.123.56.63 ip4:129.213.195.191 ip4:152.69.200.236 ip4:204.216.164.202 ip4:150.230.98.160 ip4:168.138.73.51 ip4:130.61.9.72 ip4:129.153.190.200 ip4:168.138.237.153 ip4:152.67.105.195 ip4:163.192.116.87 ip4:155.248.208.51 ip4:168.138.5.36 ip4:129.146.88.28 ip4:129.146.236.58 ip4:129.146.147.105 ip4:164.152.23.32 ip4:64.181.213.254 ip4:207.54.86.45 ip4:143.220.15.0/24 ip4:216.71.144.176 ip4:143.220.32.0/24 ip4:143.220.17.0/24 ip4:207.67.38.0/24 ip4:207.250.68.26 ip4:66.231.83.109 ip4:66.231.85.0/24 ip4:66.231.93.184 ip4:66.231.92.253 ip4:136.147.181.0/24 ip4:13.111.30.0/24 ip4:13.111.39.0/24 ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; pct=100; rua=mailto:infosys@rheumatology.org

policy: quarantine

DKIM

Show 4 DKIM selectors

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDZQQGXlAl+F++QsG3AtxtX39cjxDAhYt75JDmkyRjNhpV/ONKURUf81HGf9CoxK9OmqiJJG3y/TAx7GhGFkd…
selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxs8Twur1O9Q14DpzQnGCw3mcMhqjEsvp+hp95wwX6PxHFG9DjpSkeKDe2MpXuCduYrZ0YENoNTOJaP…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw45OyCEPl7+LnY7Sgm/AYjM0oEJdwT+Yas5+nEEN37eWOGyGKpmy6tvpU/NPEvOV8HZWSdm5QvMF65/zIy…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAm/IGl+eQKn2vcd/Z6mTPPB9morTgqEI/WJa/OtqDngLNfp5JMMScWtIlA1MN89ea5QieMFiGaEe2iiy93B…

selectors probed

Certificate (current)

R13

from 2026-04-16 to 2026-07-15

Expires in 55 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 100/100 Checked live page: https://rheumatology.org/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
permissions-policy
cross-origin-resource-policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: DENY
permissions-policy: geolocation=(), microphone=(), camera=(), browsing-topics=()
x-content-type-options: nosniff
content-security-policy: object-src 'none'; frame-ancestors 'none'; upgrade-insecure-requests;
strict-transport-security: max-age=63072000
cross-origin-resource-policy: cross-origin