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Rank #6,948Updated November 10, 2026

siam.org

SIAM Home | SIAM

siam.org is registered with Tucows Domains Inc. since August 27, 1991 (35.2 years). The registration expires on August 26, 2027. The site runs on ASP.NET, Google Ads, Cloudflare and 6 other technologies. Its email security grade is C. Its SSL certificate is issued by Google Trust Services and is valid for 75 more days.

Domain age
35.2 yrs
Technologies
9
Email security
C
SSL days left
75

Registration

RegistrarTucows Domains Inc.
IANA ID69
RegisteredAugust 27, 1991
ExpiresAugust 26, 2027
UpdatedAugust 30, 2026
Statusclient transfer prohibited, client update prohibited
Name serversalice.ns.cloudflare.com, karl.ns.cloudflare.com
DNSSECNot signed

DNS records

TypeValueTTL
A104.20.22.201300
A172.66.168.112300
MXmx-01-us-east-2.prod.hydra.sophos.com 1060
MXmx-02-us-east-2.prod.hydra.sophos.com 2060
NSalice.ns.cloudflare.com86400
NSkarl.ns.cloudflare.com86400
CAAissue 0 comodoca.com1800
CAAissue 0 digicert.com; cansignhttpexchanges=yes1800
CAAissue 0 godaddy.com1800
CAAissue 0 letsencrypt.org1800
CAAissue 0 pki.goog; cansignhttpexchanges=yes1800
CAAissue 0 ssl.com1800
CAAissuewild 0 comodoca.com1800
CAAissuewild 0 digicert.com; cansignhttpexchanges=yes1800
CAAissuewild 0 letsencrypt.org1800
CAAissuewild 0 pki.goog; cansignhttpexchanges=yes1800
CAAissuewild 0 ssl.com1800
TXT31NKXODDC17FCCE5VUFIHJK7Z1O69G4QCKQRH1AOD60
TXTDynatrace-site-verification=b5b12c8f-6ef2-4ddc-b1f2-8640eb5753b3__vgbe6qtmotlk6fniransndha6160
TXTF0110999CFF0EE327594BCC74D27A7763CED5C0660
TXTMS=ms2794432460
TXTR6DZ3/q0JyWSKZlcUvoHeJQitgqRzLEhmQzQ6oEmzg4zk8pMH15VWQJhbQR4b1L3ZOgtJ316rxM23Sdg4rvWXA==60
TXTZOOM_verify__z1kB0yJQVODFKEU02iexg60
TXTatlassian-domain-verification=yI2xkzqkZ/QLq9PMPktb3N8qxHsv2KWpWuSJqh7KIVy4loZOomlNJ3j9XKH8KCXZ60
TXTatlassian-sending-domain-verification=59decb88-e5c2-48e4-acec-c62e1c3d8a8760
TXTfacebook-domain-verification=0ezw6b1bd9y6r0jpdrcph89gdsrcw660
TXTsophos-domain-verification=c3f6c8c37c6859fe8393de3f92e22e3ee41d3e7660
TXTsophos-domain-verification=fd6569ba37d97526305ab40060d9a8233f3cc3012279fb237529a2f01f889f8060
TXTv=spf1 ip4:205.159.76.90/31 ip4:209.170.75.172/31 ip4:208.72.232.246/31 ip4:104.239.168.34 ip4:192.108.225.0/24 include:_spf_useast2.prod.hydra.sophos.com include:_spf_other.siam.org include:app.teamsupport.com include:spf.protection.outlook.com include:outboundmail.blackbaud.net -all60
AAAA2606:4700:10::ac42:a870300
AAAA2606:4700:10::6814:16c9300

Technology stack

Advertising
Google Ads
CDN
CloudflarejsDelivr
Fonts
Adobe Fonts
JavaScript library
jQuery
Monitoring
Datadog RUM
Tag manager
Google Tag Manager
Video
YouTube
Web framework
ASP.NET

Analytics and advertising IDs

google_tag_manager:GTM-WLVZ94google_ads:AW-691466514

SSL certificate

ValidValid
IssuerUS, WE1, Google Trust Services
ExpiresJanuary 25, 2027
Days remaining75
ProtocolTLSv1.3
Namessiam.org

Email security

CScore 79/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
  • goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected].
  • goodDKIM keys found (selector: selector1, k1, s1, s2).
  • good2 MX record(s) found. Mail is handled by Sophos.

Homepage metadata

TitleSIAM Home | SIAM
DescriptionSociety for Industrial and Applied Mathematics (SIAM) is an international community of 14,000+ individual members. Almost 500 academic, manufacturing, research and development, service and consulting organizations, government, and military organizations worldwide are institutional members. SIAM was incorporated in 1952 as a nonprofit organization to convey useful mathematical knowledge to other professionals who could implement mathematical theory for practical, industrial, or scientific use.
Languageen-US
Canonicalhttps://www.siam.org/
IndexableYes
Word count1230

About siam.org

Who is the registrar of siam.org?

siam.org is registered with Tucows Domains Inc. (IANA ID 69).

When does siam.org expire?

The current registration of siam.org expires on August 26, 2027. It was first registered on August 27, 1991.

What technology does siam.org use?

We detected 9 technologies on siam.org, including Google Ads, Cloudflare, jsDelivr, Adobe Fonts, jQuery, Datadog RUM.

Does siam.org protect its email with SPF and DMARC?

siam.org scores 79/100 (grade C) for email security. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.

What are the name servers of siam.org?

siam.org uses alice.ns.cloudflare.com, karl.ns.cloudflare.com.