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Total

DNS

Email

Security

Network

Availability

Domainasco.org

IPv44

IPv60

MX records3

StatusActive

Domain technical report

American Society of Clinical Oncology - ASCO

asco.org

Generated: 2026-08-09T19:30:39-05:00 · Cached result

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IPv44

IPv60

MX3

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

4 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

4 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

DNS propagation0 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

3 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

107 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: server-108-156-172-122.cmh68.r.cloudfront.net

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

HTTP/2 403

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

4 record(s)

108.156.172.122
108.156.172.104
108.156.172.129
108.156.172.54

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

3 record(s)

30 smtp.asco.org.
10 mx1.asco.iphmx.com.
20 mx2.asco.iphmx.com.

TXT

41 record(s)

"Donotreply@asco.org"
"google-site-verification=YYt2Qb09ZPgH82byS7WwhnbhPbHmfxvJtfCAa7SbBAA"
"_amazonses.Donotreply@asco.org"
"google-site-verification=VXPiyA0t5Ek_TTJwA_mqDe02XMjLp8SFAmz47SGBblE"
"parallels-domain-verification=2c4ae647fb814ce2b31139e87c9c8188b4d5c8b550a84ff4ba1887b00c922108" "@ sprout-social-9cea0497-1115-4638-986c-4b91e677dbeb"
"v=spf1 mx ip4:74.209.251.23 ip4:3.90.99.87 ip4:34.225.197.55 ip4:34.235.246.84 ip4:34.198.223.137 ip4:104.200.146.22 a:smtp.asco.org a:mx1.asco.iphmx.com a:mx2.asco.iphmx.com" "include:spf.brevo.com" "include:editorialmanager.com include:spf_c.oraclecloud.com include:spf.protection.outlook.com -all"
"google-gws-recovery-domain-verification=47927512"
"miro-verification=ac55b87f7da5bd7594c46949b00c8558a99902"
"canva-site-verification=byDHuQOycU4r4Bo-4r7vIQ"
"facebook-domain-verification=073rk28ywg197kj8ia5gpvoe0h5wec"
"nUzSWkLbMp/dUWlddbQXBL3DjRnd1xKu3ZGZAXP56UctX1kpLAm0c05A8uGqOWDn"
"sprout-social-c6bc125a-b56d-481c-a107-a3d38a3ac181"
"_github-challenge-ascogit.asco.org"
"MS=ms40377815"
"@ apple-domain-verification=M7lm2xIPV57fOqd9"
"knowbe4-site-verification=8ef1b18c7af37a4d9762e345ea8b4f5a"
"apple-domain-verification=M7lm2xIPV57fOqd9"
"amazonses:rdf2BE5yDZgHkXrTP0ca13V+oMA41M2onSTov+m+SYE="
"ab89ec97022baef58aaa68ff63edab0590efe1c1"
"@ 3600 IN TXT adobe-idp-site-verification=14fb9397d12ba236fb2b9dec4bc44c14ddd58b94a62aeae49c83ce2db36efb6b"
"smartsheet-site-validation=zBGAWhLZIccwQB3rEyWs0cjN6rgHqMNy"
"duo_sso_verification=WYm6QjxPskO36AEy24QCetW4k7W5XQ66uLAlu5LodWxCdHGisQJUiZQCU5rMxPrn"
"hcp-domain-verification=b2a3f35ff7916d96979245e7a646baa495cc93f6c27e8b113a6910b49cbd057b"
"asco-ceportal-web-dev.azurewebsites.net"
"adobe-idp-site-verification=14fb9397d12ba236fb2b9dec4bc44c14ddd58b94a62aeae49c83ce2db36efb6b"
"HwCX3HhmzjUzsxvl0rkVy0d8SzVuWWZxsjgl22Dud4yrANHUpElkKe0Coc1Wg9b5b1Laoibo6FMjEbrX8lpsNg=="
"amazonses:/eE/71ljSJ+PsinYxMrmiUdeOe8ymV4G7Zbr7BEbPtM="
"6883a2355cdea79aa271045762a08d094b72d141ca7830d9a28974ef14c8365b"
"Wdxmky5vEftLPuNaKAIArZNKDJLaKccuO8H02fg+k4gF6rS53iZEqkghlbITC1xd3/vfe2IOXNYwfPHNm9VGxw=="
"twilio-domain-verification=41f24806419801964c15fefbc6a726a6"
"slack-domain-verification=IX0UThno38FJO0Ke1c6IVHS401ekknZWqfMQ2QCI"
"brevo-code:aafc0b447941409ecc88da9b4ab25826"
"3udhdp6vr3fj5i2ac5fsaaa140"
"atlassian-domain-verification=nUzSWkLbMp/dUWlddbQXBL3DjRnd1xKu3ZGZAXP56UctX1kpLAm0c05A8uGqOWDn"
"jamf-site-verification=-b-WC9Q5i254RaDMWLLNsQ"
"onetrust-domain-verification=5ffa16c169984438a38821ad874a4ae3"
"google-site-verification=O-iV6aH-4MIuuE6r9VUXkz9r545bO91hOH_R6khfvxQ"
"citrix.mobile.ads.otp=wlo7pmjaiq1t863udzvn"
"google-site-verification=lIs1xnJGjupov2-cIX8t9SLoKkoKrevHDArxY3ube2M"
"ZOOM_verify_1TiEju7zQzYRSjs3CcHyUP"
"SpyCloud-verification=ab89ec97022baef58aaa68ff63edab0590efe1c1"

NS

4 record(s)

ns-1786.awsdns-31.co.uk.
ns-1033.awsdns-01.org.
ns-705.awsdns-24.net.
ns-95.awsdns-11.com.

SOA

1 record(s)

ns-95.awsdns-11.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

SRV

2 record(s)

100 1 5061 sipfed.online.lync.com.
100 1 443 sipdir.online.lync.com.

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 mx ip4:74.209.251.23 ip4:3.90.99.87 ip4:34.225.197.55 ip4:34.235.246.84 ip4:34.198.223.137 ip4:104.200.146.22 a:smtp.asco.org a:mx1.asco.iphmx.com a:mx2.asco.iphmx.cominclude:spf.brevo.cominclude:editorialmanager.com include:spf_c.oraclecloud.com include:spf.protection.outlook.com -all

DMARC

Configured

v=DMARC1; p=none;

DKIM

Selector mail

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z+FApQ6ra2VsXfbJP3HE6wAO0YTVEJt1TmeczhEd2Jiz/fcabIISgXEdSpTYJhb0ct0VJRxcg4c8c7wIDAQABTXT

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

American Society of Clinical Oncology - ASCO

Description

Final URL

https://www.asco.org/

HTTP status

200

HTTP

Status

HTTP/2 403

Final URL

https://asco.org/

Version

Server

CloudFront

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Amazon

asco.org

Valid from

2025-10-26T19:00:00-05:00

Valid until

2026-11-25T17:59:59-06:00

Days remaining

107

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

6 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

✓

Permissions PolicyImplemented

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Review

Differences detected

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

13.32.164.106, 13.32.164.123, 13.32.164.14, 13.32.164.78

70,59 ms

Cloudflare

1.1.1.1

13.32.164.106, 13.32.164.123, 13.32.164.14, 13.32.164.78

52,17 ms

Quad9

9.9.9.9

54.192.100.12, 54.192.100.125, 54.192.100.36, 54.192.100.92

78,73 ms

OpenDNS

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

smtp.asco.org

Port 25: Closed/unreachable - 9.1 ms - 
Port 465: Closed/unreachable - 4012.3 ms - 
Port 587: Closed/unreachable - 4001 ms -

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