40
records
IPv4 Addresses
TTL
drfirst.com. 300 IN A 199.60.103.163 drfirst.com. 300 IN A 199.60.103.63
Name Servers
TTL
drfirst.com. 300 IN NS ns-1474.awsdns-56.org. drfirst.com. 300 IN NS ns-1893.awsdns-44.co.uk. drfirst.com. 300 IN NS ns-280.awsdns-35.com. drfirst.com. 300 IN NS ns-692.awsdns-22.net.
Mail Servers
TTL
5m
5m
drfirst.com. 300 IN MX 10 mx0a-00308002.pphosted.com. drfirst.com. 300 IN MX 15 mx0b-00308002.pphosted.com.
SOA Details
TTL
15m
SOA
Responsible
awsdns-hostmaster.amazon.com
SOA
Serial
1
SOA
Times
Refresh
2h
Retry
15m
Expire
14d
Minimum TTL
1d
drfirst.com. 900 IN SOA ns-1474.awsdns-56.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Certificate Authority Authorization
TTL
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
5m
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
25
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
drfirst.com. 300 IN DMARC v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=s; pct=25;
DKIM
TTL
No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
||
| ~ Softfail | all |
—
|
|
5m
drfirst.com. 300 IN TXT "v=spf1 ip4:205.220.174.143 ip4:205.220.162.144 include:_spf.sendergen.com include:sendgrid.net include:mailgun.org include:mail.zendesk.com include:24385719.spf03.hubspotemail.net ip4:209.160.238.25/32 ip4:207.114.91.18/32 ~all"
MTA-STS
TTL
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).
Text Content
TTL
MS=ms72862453
5m
MS=ms80104068
5m
adobe-idp-site-verification=5f60cf537226f42abcff1734e4358b8cd452758da2f359fb99310dc7f32a87f5
5m
anthropic-domain-verification-2szsvb=tz41th49kXw4TcW1l7onnnw0U
5m
apple-domain-verification=WryytAnu2bsLgGE6
5m
atlassian-domain-verification=FUiZoGqvtAaCDD/mV46UX6zV4uuklgq7dYZtETxNfrq4n5D1jc1qWh755ZV6SZaX
5m
atlassian-sending-domain-verification=3feb2a58-1315-43a2-9dc9-0e7f7f27c830
5m
globalsign-domain-verification=1AF085C9EB6577F7889B1C15F8B2B192
5m
globalsign-domain-verification=5BA5A36C7D843FD9551D00A65A2A06CB
5m
globalsign-domain-verification=8F7DC2618F424E3907008CDE16FBC38F
5m
google-site-verification=3-ikOkTyQFrqabjv-FLoZaah7i6OqpB_4g1ynX_Sbmw
5m
google-site-verification=N-_mY0gL9URyKXH9xy81XceVDFREIjZcHMmIoFxpib8
5m
intersight=086e99eeb2037d0166cf9e23268c8137307b526d64acb55589f231b376afb211
5m
jetbrains-domain-verification=7ot4rxq429hrso7v13kahkv40
5m
loom-site-verification=266c75d7c73c4b4f9eb50e7d6de54312
5m
mixpanel-domain-verify=b307e8b7-3cdb-4e61-8fd4-e12aaef00ecb
5m
northpass-domain-verification=a5094eb854947c9467d2bae425612576
5m
openai-domain-verification=dv-sRn7quUJ8pRePleeJZ27DNv6
5m
pendo-domain-verification=Bl2H9bJvrdX_p-lgj9XcoWCVJxM
5m
stripe-verification=52fe424893896df9666fb627557c71ab10c35d5b7c877ae1c777ed59acababd9
5m
zapier-domain-verification-challenge=0b3808d4-394b-4c08-9e0a-f0a4437ec6a0
5m
TXT
—
00DDn00000145Ep=1TBUT00000007Cn
5m
TXT
—
00DVB000007acXN=1TBVB0000000FTh
5m
TXT
—
00DVB000008bVxt=1TBVB0000000EHV
5m
TXT
—
4415764075d54a3182f38d51fdf95f1c
5m
TXT
—
505772fe24c24dced3ee50ea02abe1a6ad68ee349096fa6bd1c1ac82e1311792
5m
TXT
—
bcx096vn9f6h519jhmk23jy9vn135z9p
5m
TXT
—
dUZexotYLHoV8u4iTesIh5hfk3qMloXH6Z2P2P/V9x0/Twz+vUpXzT08GziS+grXdoYD7+HLUOl22nnlahMbgw==
5m
TXT
—
nJD74UFDpF_xvDZy65Qb5Le2NWtg72lZ
5m
drfirst.com. 300 IN TXT "MS=ms72862453" drfirst.com. 300 IN TXT "MS=ms80104068" drfirst.com. 300 IN TXT "adobe-idp-site-verification=5f60cf537226f42abcff1734e4358b8cd452758da2f359fb99310dc7f32a87f5" drfirst.com. 300 IN TXT "anthropic-domain-verification-2szsvb=tz41th49kXw4TcW1l7onnnw0U" drfirst.com. 300 IN TXT "apple-domain-verification=WryytAnu2bsLgGE6" drfirst.com. 300 IN TXT "atlassian-domain-verification=FUiZoGqvtAaCDD/mV46UX6zV4uuklgq7dYZtETxNfrq4n5D1jc1qWh755ZV6SZaX" drfirst.com. 300 IN TXT "atlassian-sending-domain-verification=3feb2a58-1315-43a2-9dc9-0e7f7f27c830" drfirst.com. 300 IN TXT "globalsign-domain-verification=1AF085C9EB6577F7889B1C15F8B2B192" drfirst.com. 300 IN TXT "globalsign-domain-verification=5BA5A36C7D843FD9551D00A65A2A06CB" drfirst.com. 300 IN TXT "globalsign-domain-verification=8F7DC2618F424E3907008CDE16FBC38F" drfirst.com. 300 IN TXT "google-site-verification=3-ikOkTyQFrqabjv-FLoZaah7i6OqpB_4g1ynX_Sbmw" drfirst.com. 300 IN TXT "google-site-verification=N-_mY0gL9URyKXH9xy81XceVDFREIjZcHMmIoFxpib8" drfirst.com. 300 IN TXT "intersight=086e99eeb2037d0166cf9e23268c8137307b526d64acb55589f231b376afb211" drfirst.com. 300 IN TXT "jetbrains-domain-verification=7ot4rxq429hrso7v13kahkv40" drfirst.com. 300 IN TXT "loom-site-verification=266c75d7c73c4b4f9eb50e7d6de54312" drfirst.com. 300 IN TXT "mixpanel-domain-verify=b307e8b7-3cdb-4e61-8fd4-e12aaef00ecb" drfirst.com. 300 IN TXT "northpass-domain-verification=a5094eb854947c9467d2bae425612576" drfirst.com. 300 IN TXT "openai-domain-verification=dv-sRn7quUJ8pRePleeJZ27DNv6" drfirst.com. 300 IN TXT "pendo-domain-verification=Bl2H9bJvrdX_p-lgj9XcoWCVJxM" drfirst.com. 300 IN TXT "stripe-verification=52fe424893896df9666fb627557c71ab10c35d5b7c877ae1c777ed59acababd9" drfirst.com. 300 IN TXT "zapier-domain-verification-challenge=0b3808d4-394b-4c08-9e0a-f0a4437ec6a0" drfirst.com. 300 IN TXT "00DDn00000145Ep=1TBUT00000007Cn" drfirst.com. 300 IN TXT "00DVB000007acXN=1TBVB0000000FTh" drfirst.com. 300 IN TXT "00DVB000008bVxt=1TBVB0000000EHV" drfirst.com. 300 IN TXT "4415764075d54a3182f38d51fdf95f1c" drfirst.com. 300 IN TXT "505772fe24c24dced3ee50ea02abe1a6ad68ee349096fa6bd1c1ac82e1311792" drfirst.com. 300 IN TXT "bcx096vn9f6h519jhmk23jy9vn135z9p" drfirst.com. 300 IN TXT "dUZexotYLHoV8u4iTesIh5hfk3qMloXH6Z2P2P/V9x0/Twz+vUpXzT08GziS+grXdoYD7+HLUOl22nnlahMbgw==" drfirst.com. 300 IN TXT "nJD74UFDpF_xvDZy65Qb5Le2NWtg72lZ"