31
records
IPv4 Addresses
TTL
vitalsource.com. 300 IN A 104.19.189.84 vitalsource.com. 300 IN A 104.19.190.84
IPv6 Addresses
TTL
vitalsource.com. 300 IN AAAA 2606:4700:0:0:0:0:6813:BD54 vitalsource.com. 300 IN AAAA 2606:4700:0:0:0:0:6813:BE54
Name Servers
TTL
vitalsource.com. 1200 IN NS aida.ns.cloudflare.com. vitalsource.com. 1200 IN NS jonah.ns.cloudflare.com.
Mail Servers
TTL
vitalsource.com. 300 IN MX 10 vitalsource-com.mail.protection.outlook.com.
SOA Details
TTL
20m
SOA
Responsible
dns.cloudflare.com
SOA
Serial
2402532083
SOA
Times
Refresh
2h
Retry
40m
Expire
7d
Minimum TTL
30m
vitalsource.com. 1200 IN SOA aida.ns.cloudflare.com. dns.cloudflare.com. 2402532083 10000 2400 604800 1800
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
Subdomain Policy
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
none
quarantine
reject
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
vitalsource.com. 300 IN DMARC v=DMARC1; p=none; rua=mailto:[email protected]; sp=none;
DKIM
TTL
DKIM
Selector
m1
v=DKIM1
k=rsa
5m
Public Key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCX4WeaEgCgxVse2uVB...
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCX4WeaEgCgxVse2uVBV6uoN2XFYVkn2cvR+pPQyvjt4F1H2eDXEOc3c6l/ZkTnvcHtLI8mE0qQCU5kXO/i2IaF5SMR/rySfkK1c0xSNpGgtbN++FCNrYzK1ac5mrljs8NFznxEc7K1xiHgqQ6REbJpDfmhInPW506aEuQPx72tlQIDAQAB
DKIM
Selector
mandrill
v=DKIM1
k=rsa
5m
Public Key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J...
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB
DKIM
Selector
selector1
v=DKIM1
k=rsa
20m
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuGbbNBkOqKbp...
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuGbbNBkOqKbppi07lIUphF8clz2J46rPfF7Q8pg2q7OHNBcJv82nwvBNNVnyHL/Oh5tXcS1cBkIWCgtcLIcCaNnMOLQ+g9W2fapupopPT3cr2nGk1cEVwPdwrOIDydPuoAfnAeiINvar4JKgR8PAJtZNJUN9D/1/PzquRAe19XTh/AAphwve2aO39tDQTj1uxyQB/aGBrnC2lYgXEbUA4N7GoYgCpO2RC3Ry/pOEaVE52o1wRbN3mK+yeTnC0eK0XcVOjvOdzQ5qt5pFULGjrR/yAou8LRczWflixbsbGsrKzkZepwneXgWPprguXaEX9XRD4k6c8RyGRIx4XSBnKQIDAQAB
DKIM
Selector
zendesk2
v=DKIM1
k=rsa
20m
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmiSFNkgXrO3I...
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmiSFNkgXrO3I8aOaPONDZWHv027rkiGIwb838OyXPgvFDEkCV/qGcdXSjZnaVAadrTm/oKnL8WOltP9zB1FLEuKt0fTi5zRyKPE4oIYCnEzXwrGqzjUcCABQBawQVqvXjDOaYh9Lhp8W5PYOLo905vRW7ipyIMDhuzBOJls91/WWXnNK0OwP3RghiisZjA3K2KqtRwf7w6GjNeNuAMNhvcmgAN15d/mhK+dev/hcRbal66RoYyTD8c0F0isahWH0envEX8aj+SBhheNk0/U37dGE+4nFaY5yP9CUlYjFKDSIKZgHzG4Hci3t/RubU58pi6BCrQQdAFvIOeDFeCZ0ywIDAQAB
DKIM
Selector
zendesk1
v=DKIM1
k=rsa
20m
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9IqdLrO3Zr2/...
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9IqdLrO3Zr2/56MHt8oQVCQorP0Bl2Fz9sM2tFBnJCdB/HogQmuudEg2xAovCN2PYpw44UijIvPuBoT9vxiv6ZCBJTLJXa82r6ke5rE4tbe9NKFIrVIb9S306cJDrnKFMDb8p0dU/Su0+eUR5gVAOtCuz2L8HAzs5edvsEvD/Fb4ny1RLNSEPZkIQLfGhVxQeWANm3+1Jwb/OBVXV9k0nKpWrpgqcmO7NzroJirp014RQY7rGi60JLUubc6XhvoFQBQrtOAdVlZC5wvfS1bgpq5kQpdP7cajIqWCeqxPTeo0ZUpey2ZcaygEsZz0Z3Gs5wDzyuqd7/ADpr2jNF7ozwIDAQAB
vitalsource.com. 300 IN DKIM v=DKIM1;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCX4WeaEgCgxVse2uVBV6uoN2XFYVkn2cvR+pPQyvjt4F1H2eDXEOc3c6l/ZkTnvcHtLI8mE0qQCU5kXO/i2IaF5SMR/rySfkK1c0xSNpGgtbN++FCNrYzK1ac5mrljs8NFznxEc7K1xiHgqQ6REbJpDfmhInPW506aEuQPx72tlQIDAQAB vitalsource.com. 300 IN DKIM v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB; vitalsource.com. 1200 IN DKIM v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuGbbNBkOqKbppi07lIUphF8clz2J46rPfF7Q8pg2q7OHNBcJv82nwvBNNVnyHL/Oh5tXcS1cBkIWCgtcLIcCaNnMOLQ+g9W2fapupopPT3cr2nGk1cEVwPdwrOIDydPuoAfnAeiINvar4JKgR8PAJtZNJUN9D/1/PzquRAe19XTh/AAphwve2aO39tDQTj1uxyQB/aGBrnC2lYgXEbUA4N7GoYgCpO2RC3Ry/pOEaVE52o1wRbN3mK+yeTnC0eK0XcVOjvOdzQ5qt5pFULGjrR/yAou8LRczWflixbsbGsrKzkZepwneXgWPprguXaEX9XRD4k6c8RyGRIx4XSBnKQIDAQAB; vitalsource.com. 1200 IN DKIM v=DKIM1; t=s; n=core; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmiSFNkgXrO3I8aOaPONDZWHv027rkiGIwb838OyXPgvFDEkCV/qGcdXSjZnaVAadrTm/oKnL8WOltP9zB1FLEuKt0fTi5zRyKPE4oIYCnEzXwrGqzjUcCABQBawQVqvXjDOaYh9Lhp8W5PYOLo905vRW7ipyIMDhuzBOJls91/WWXnNK0OwP3RghiisZjA3K2KqtRwf7w6GjNeNuAMNhvcmgAN15d/mhK+dev/hcRbal66RoYyTD8c0F0isahWH0envEX8aj+SBhheNk0/U37dGE+4nFaY5yP9CUlYjFKDSIKZgHzG4Hci3t/RubU58pi6BCrQQdAFvIOeDFeCZ0ywIDAQAB vitalsource.com. 1200 IN DKIM v=DKIM1;t=s;n=core;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9IqdLrO3Zr2/56MHt8oQVCQorP0Bl2Fz9sM2tFBnJCdB/HogQmuudEg2xAovCN2PYpw44UijIvPuBoT9vxiv6ZCBJTLJXa82r6ke5rE4tbe9NKFIrVIb9S306cJDrnKFMDb8p0dU/Su0+eUR5gVAOtCuz2L8HAzs5edvsEvD/Fb4ny1RLNSEPZkIQLfGhVxQeWANm3+1Jwb/OBVXV9k0nKpWrpgqcmO7NzroJirp014RQY7rGi60JLUubc6XhvoFQBQrtOAdVlZC5wvfS1bgpq5kQpdP7cajIqWCeqxPTeo0ZUpey2ZcaygEsZz0Z3Gs5wDzyuqd7/ADpr2jNF7ozwIDAQAB
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | exists |
%{i}._spf.mta.salesforce.com
|
|
|
| + Pass | include |
|
||
| + Pass | include |
|
||
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
5m
vitalsource.com. 300 IN TXT "v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mktomail.com include:rp.oracleemaildelivery.com exists:%{i}._spf.mta.salesforce.com include:spf.mandrillapp.com include:mail.zendesk.com include:_spf.sendergen.com ~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
1password-site-verification=RRERYUR7OVARXKGGZCMRSSZJP4
5m
MS=ms39645889
5m
TAILSCALE-f1gedyfA1knhE18OUcPT
5m
anthropic-domain-verification-wadrsn=mJxW8Ib9Jv0nu9QVBbn7It7dQ
5m
apple-domain-verification=mCIZRftXRlvbbgNf
5m
cursor-domain-verification-tn4rgs=GZ79G2oE2pNUGB8Rp3aTCry2y
5m
facebook-domain-verification=1lgt7rmfll6da198anxuylzzp2l04j
5m
google-site-verification=BIMJg_Pk3BKY5n4M3BYh--LJ5s61RYZ22UZG1JIN_J0
5m
google-site-verification=BSgIQG67SCvBmkB8oyqPsje9DA_ZX0AE-AZk958_G_s
5m
google-site-verification=CaKq1GauqV6CaYjnf7FM5Gl3avbxLKJthA7ZyctMkTc
5m
google-site-verification=Ts9HPtoD1UCqBL6KzcH96bABxjkctm1J6XixIJpQs2I
5m
google-site-verification=yZ-kJatoo-6qop_nCghctNlbUDWhv8k1LKZQvuplips
5m
klaviyo-site-verification=RrN2B6
5m
klaviyo-site-verification=YwZrXt
5m
openai-domain-verification=dv-3ecR37S1SIOK6mjEgt9y2WKt
5m
TXT
—
b078a8887638430a85b4a64b02fa269b.vitalsource.com
5m
vitalsource.com. 300 IN TXT "1password-site-verification=RRERYUR7OVARXKGGZCMRSSZJP4" vitalsource.com. 300 IN TXT "MS=ms39645889" vitalsource.com. 300 IN TXT "TAILSCALE-f1gedyfA1knhE18OUcPT" vitalsource.com. 300 IN TXT "anthropic-domain-verification-wadrsn=mJxW8Ib9Jv0nu9QVBbn7It7dQ" vitalsource.com. 300 IN TXT "apple-domain-verification=mCIZRftXRlvbbgNf" vitalsource.com. 300 IN TXT "cursor-domain-verification-tn4rgs=GZ79G2oE2pNUGB8Rp3aTCry2y" vitalsource.com. 300 IN TXT "facebook-domain-verification=1lgt7rmfll6da198anxuylzzp2l04j" vitalsource.com. 300 IN TXT "google-site-verification=BIMJg_Pk3BKY5n4M3BYh--LJ5s61RYZ22UZG1JIN_J0" vitalsource.com. 300 IN TXT "google-site-verification=BSgIQG67SCvBmkB8oyqPsje9DA_ZX0AE-AZk958_G_s" vitalsource.com. 300 IN TXT "google-site-verification=CaKq1GauqV6CaYjnf7FM5Gl3avbxLKJthA7ZyctMkTc" vitalsource.com. 300 IN TXT "google-site-verification=Ts9HPtoD1UCqBL6KzcH96bABxjkctm1J6XixIJpQs2I" vitalsource.com. 300 IN TXT "google-site-verification=yZ-kJatoo-6qop_nCghctNlbUDWhv8k1LKZQvuplips" vitalsource.com. 300 IN TXT "klaviyo-site-verification=RrN2B6" vitalsource.com. 300 IN TXT "klaviyo-site-verification=YwZrXt" vitalsource.com. 300 IN TXT "openai-domain-verification=dv-3ecR37S1SIOK6mjEgt9y2WKt" vitalsource.com. 300 IN TXT "b078a8887638430a85b4a64b02fa269b.vitalsource.com"