35
records
IPv4 Addresses
TTL
duolingo.com. 60 IN A 52.202.35.22 duolingo.com. 60 IN A 54.82.10.12
Name Servers
TTL
NS
AWS Route53
1d
NS
AWS Route53
1d
NS
AWS Route53
1d
NS
AWS Route53
1d
duolingo.com. 172231 IN NS ns-1020.awsdns-63.net. duolingo.com. 172231 IN NS ns-1117.awsdns-11.org. duolingo.com. 172231 IN NS ns-1904.awsdns-46.co.uk. duolingo.com. 172231 IN NS ns-247.awsdns-30.com.
Mail Servers
TTL
MX
Google
10
5m
MX
Google
20
5m
MX
Google
20
5m
MX
Google
30
5m
MX
Google
30
5m
MX
Google
30
5m
MX
Google
30
5m
duolingo.com. 300 IN MX 10 aspmx.l.google.com. duolingo.com. 300 IN MX 20 alt1.aspmx.l.google.com. duolingo.com. 300 IN MX 20 alt2.aspmx.l.google.com. duolingo.com. 300 IN MX 30 aspmx2.googlemail.com. duolingo.com. 300 IN MX 30 aspmx3.googlemail.com. duolingo.com. 300 IN MX 30 aspmx4.googlemail.com. duolingo.com. 300 IN MX 30 aspmx5.googlemail.com.
SOA Details
TTL
SOA
Primary NS
Responsible
awsdns-hostmaster.amazon.com
0m
Serial
1
0m
Times
Refresh
2h
Retry
15m
Expire
14d
Minimum TTL
1d
duolingo.com. 900 IN SOA ns-1020.awsdns-63.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
DMARC
TTL
DMARC
Policy
reject
31s
Subdomain Policy
reject
0m
Percentage
100
0m
RUF
duolingo.com. 31 IN DMARC v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r
Text Content
TTL
TXT
SPF
v=spf1 ip4:100.25.59.11 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:52.73.203.75 ip4:52.70.130.33 include:amazonses.com include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:aspmx.pardot.com ~all
1h
TXT
Microsoft
MS=ms66530579
1h
TXT
Anthropic
anthropic-domain-verification-z4335b=YssTBALPY7K784Sri4FjVHjd3
1h
TXT
Apple
apple-domain-verification=bMPI889zOgALUenN
1h
TXT
Atlassian
atlassian-sending-domain-verification=423a5faf-1cfa-4704-a38a-f7adae302dd6
1h
TXT
Docker
docker-verification=b4ead4c5-fd66-42a5-a684-8f2e7f4c1417
1h
TXT
Google
google-site-verification=I5Coao5e8Fbq0F5dD1guhHnJh6PesDRBlFFeruCq5KY
1h
TXT
HackerOne
h1-domain-verification=sjPBeaGqQwEe8YhJ3W8JVNJa7WDQFAzc6AHkURoErkh324Yy
1h
TXT
JetBrains
jetbrains-domain-verification=bt8q7duih10l9pmf5fo5yy8wf
1h
TXT
Klaviyo
klaviyo-site-verification=RKdcF3
1h
TXT
Klaviyo
klaviyo-site-verification=TGmZS7
1h
TXT
OpenAI
openai-domain-verification=dv-A4cFxdrYIEodfG6UiQU0qxnT
1h
TXT
OpenAI
openai-domain-verification=dv-ieCpefZUqvVQwb8f7o4SlFye
1h
TXT
Salesforce Pardot
pardot_208162_*=610bfb45f202232a79db94c298b30d14332a62a6894e695b025fa7949d7b03fa
1h
TXT
Salesforce Pardot
pardot_208162_*=c15d5cb1b9f31e26058e1f30bda9e5d65c57cfeea37b34af8e1dd88474460e90
1h
TXT
—
aliyun-site-verification=1acfc148-50be-45c8-a021-3c933fc8eff9
1h
TXT
—
amazonses:+SIz2NZPqYri3C+PSIyKShZIbuI4rNpbLlES7lmvpu4=
1h
TXT
—
e622flctk14s3cs3ccdauh8uth
1h
TXT
—
spacelift-domain-verification=519xtPXm
1h
duolingo.com. 3600 IN TXT "v=spf1 ip4:100.25.59.11 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:52.73.203.75 ip4:52.70.130.33 include:amazonses.com include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:aspmx.pardot.com ~all" duolingo.com. 3600 IN TXT "MS=ms66530579" duolingo.com. 3600 IN TXT "anthropic-domain-verification-z4335b=YssTBALPY7K784Sri4FjVHjd3" duolingo.com. 3600 IN TXT "apple-domain-verification=bMPI889zOgALUenN" duolingo.com. 3600 IN TXT "atlassian-sending-domain-verification=423a5faf-1cfa-4704-a38a-f7adae302dd6" duolingo.com. 3600 IN TXT "docker-verification=b4ead4c5-fd66-42a5-a684-8f2e7f4c1417" duolingo.com. 3600 IN TXT "google-site-verification=I5Coao5e8Fbq0F5dD1guhHnJh6PesDRBlFFeruCq5KY" duolingo.com. 3600 IN TXT "h1-domain-verification=sjPBeaGqQwEe8YhJ3W8JVNJa7WDQFAzc6AHkURoErkh324Yy" duolingo.com. 3600 IN TXT "jetbrains-domain-verification=bt8q7duih10l9pmf5fo5yy8wf" duolingo.com. 3600 IN TXT "klaviyo-site-verification=RKdcF3" duolingo.com. 3600 IN TXT "klaviyo-site-verification=TGmZS7" duolingo.com. 3600 IN TXT "openai-domain-verification=dv-A4cFxdrYIEodfG6UiQU0qxnT" duolingo.com. 3600 IN TXT "openai-domain-verification=dv-ieCpefZUqvVQwb8f7o4SlFye" duolingo.com. 3600 IN TXT "pardot_208162_*=610bfb45f202232a79db94c298b30d14332a62a6894e695b025fa7949d7b03fa" duolingo.com. 3600 IN TXT "pardot_208162_*=c15d5cb1b9f31e26058e1f30bda9e5d65c57cfeea37b34af8e1dd88474460e90" duolingo.com. 3600 IN TXT "aliyun-site-verification=1acfc148-50be-45c8-a021-3c933fc8eff9" duolingo.com. 3600 IN TXT "amazonses:+SIz2NZPqYri3C+PSIyKShZIbuI4rNpbLlES7lmvpu4=" duolingo.com. 3600 IN TXT "e622flctk14s3cs3ccdauh8uth" duolingo.com. 3600 IN TXT "spacelift-domain-verification=519xtPXm"