extension.harvard.edu
Observed 2026-06-15T16:18:00.216483453+00:00 (1h ago). Every field below was attested with an Ed25519 signature at scan time.
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Verify this receiptEd25519 Receipt
- Receipt ID
e01b3ea5-cb7e-4bcb-9b4a-6ae343bf936e- Output Hash
2898e7dac29621d39fa91ea88506d6846e544d05d9cce1be0413b9a0333b67cc- Signature
ed25519:e556783849648ec1ba1d7fe6592eb3dc3cbb93325d9e4f1ba5314cc80e11c8b7e8b361a897159df93c37a9d9cbe8ed0182c5c077267b510ba75b21d9e98ffa0a- Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29- Parent
(genesis)- Plane
- fast
DNS Records
A 1
23.185.0.1
AAAA 2
2620:12a:8000::12620:12a:8001::1
MX 2
{"priority":100,"exchange":"mx0b-00171101.pphosted.com"}{"priority":100,"exchange":"mx0a-00171101.pphosted.com"}
TXT 8
anthropic-domain-verification-yma60b=iIYn7CygYmxD9f8ynJOmz5Z5Vgoogle-site-verification=KTzOUo7gPXWp3jvnDRB5lCXzpGx2Sh7Osjm_5Pvixa0google-site-verification=tzmjMGjzKQVBgEZzniAHdkyyh7E3bwl6wAgf0kIfTQMopenai-domain-verification=dv-VUo8zaxeVwykPdyNqwwDoWXiv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~allgoogle-site-verification=y1KmMSc7jtK8BUkTSVvhvf4LqRL3OPz3Zy5YKr-VZBEv=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.emailv=BIMI1; l=https://extension.harvard.edu/wp-content/uploads/sites/8/2024/01/EXT_Shield_Bimi.svg
NS 6
a16-64.akam.neta7-65.akam.neta11-67.akam.neta1-171.akam.neta6-66.akam.neta10-66.akam.net
SOA 1
{"mname":"a1-171.akam.net","rname":"netmanager.harvard.edu","serial":2023062068,"refresh":10800,"retry":3600,"expire":2419200,"minimum":3600}
SRV 2
{"priority":10,"weight":10,"port":5222,"target":"dcedecode2.dce.harvard.edu"}{"priority":10,"weight":10,"port":5269,"target":"dcedecode2.dce.harvard.edu"}
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
alumni.extension.harvard.edu |
C=US, O=Let's Encrypt, CN=YR1 | Fri, 11 Sep 2026 15:20:28 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |