hbr.org
The domain hbr.org answers at IP address 108.138.26.57. The domain DNS is managed by Amazon Route 53, which decides where each subdomain points. Mail for hbr.org goes through 2 servers; the highest priority one is usb-smtp-inbound-2.mimecast.com. It also publishes 20 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 108.138.26.57 60s
- 108.138.26.122 60s
- 108.138.26.25 60s
- 108.138.26.41 60s
MX MX records
- 10 usb-smtp-inbound-2.mimecast.com 1800s
- 10 usb-smtp-inbound-1.mimecast.com 1800s
NS NS records
- ns-469.awsdns-58.com 21600s
- ns-1175.awsdns-18.org 21600s
- ns-604.awsdns-11.net 21600s
- ns-1877.awsdns-42.co.uk 21600s
TXT TXT records
- knowbe4-site-verification=f00a4d6e618b4a00b6f39e0b4c9e093f 331s
- openai-domain-verification=dv-yzIW4FvevpXrgKYrQ9Ndlm4V 331s
- google-site-verification=P1JGD_hnkAqlxSPmsFW_M2nifpmJC2iBjnfmKi1uJCc 331s
- smartsheet-site-validation=76f6Fdn8EnnOgbwX-KcCnJ5Nj66wRUeo 331s
- _1nl5kysnqxswpmo75e1u1fdcbs0fptr 331s
- MS=ms51679339 331s
- onetrust-domain-verification=0df7d79642a64b338bb91818045b158d 331s
- ciscocidomainverification=3a5e2e428cc891b6aef0b7598537338dd5c2bf8fe96326d58d87f62324dd9733 331s
- google-site-verification=0fyEgLpijqbt_OMG0ncBIK4G153eKqHF7UeGfTZgZk0 331s
- Wo71J1PNbWKkAikjb4WeqxCjBcNQwf6hcll0LJM6s9peRMF1ImcaCENQfddffLROaJY6wZHW2jrUsDNXC38vjg== 331s
- google-site-verification=ikLo_eYH7jY56yB4qtVoDTxY9WUWl7NkUEsM-UB6DT0 331s
- docusign=59df337d-04fe-422f-bd8e-438fc3e80d21 331s
- sip=m699vbpan7kdoitobogsq38e1k 331s
- atlassian-domain-verification=5VnB9cXf8cZ+rqMksjlq1KyEzUSjGsBJ5irmtvOZtpwtq6AsKSs+jGHcKUhotODA 331s
- extensis-domain-verification=3decd987-0352-469b-8111-a273b429588a 331s
- v=spf1 ip4:167.89.5.215 include:hbsp.harvard.edu include:amazonses.com include:u12602457.wl208.sendgrid.net include:aspmx.sailthru.com include:_spf.bigcommerce.com ~all 331s
- lyncdiscover = seh3q1rpvadu98fpk213q7htq2 331s
- google-site-verification=o-E502ZnlfSSAM2JRb0RUfIxROmYDcYVOZnzlVRknS0 331s
- webexdomainverification.4C675B8B1892B136E053AB06FC0A3F65=7b2ac320-8920-4cf1-826d-975f96f199cb 331s
- facebook-domain-verification=hvrm85rd5hvr18o50vzpd1lprkjg76 331s
SOA SOA records
- ns-1175.awsdns-18.org 60s
What each record means
- A and AAAA: the server IP address, in IPv4 and IPv6.
- MX: the servers that receive the domain mail. The number is the priority; the lowest is tried first.
- NS: the name servers, which have the final say over the domain DNS.
- TXT: free text. Mostly used for SPF, DKIM and DMARC, and to verify ownership with third parties.
- TTL: how many seconds the record may be cached before asking again.
Checked 4 hours ago.