20
records
IPv4 Addresses
TTL
5m
5m
substack.com. 300 IN A 104.18.37.200 substack.com. 300 IN A 172.64.150.56
IPv6 Addresses
TTL
substack.com. 300 IN AAAA 2606:4700:4400:0:0:0:AC40:9638 substack.com. 300 IN AAAA 2606:4700:440B:0:0:0:6812:25C8
Name Servers
TTL
NS
Cloudflare
1d
NS
Cloudflare
1d
substack.com. 86400 IN NS ali.ns.cloudflare.com. substack.com. 86400 IN NS lee.ns.cloudflare.com.
Mail Servers
TTL
MX
Mailgun
10
5m
MX
Mailgun
10
5m
substack.com. 300 IN MX 10 mxa.mailgun.org. substack.com. 300 IN MX 10 mxb.mailgun.org.
SOA Details
TTL
SOA
Primary NS
Responsible
dns.cloudflare.com
0m
Serial
2384752496
0m
Times
Refresh
2h
Retry
40m
Expire
7d
Minimum TTL
30m
substack.com. 1800 IN SOA ali.ns.cloudflare.com. dns.cloudflare.com. 2384752496 10000 2400 604800 1800
DMARC
TTL
DMARC
Policy
reject
5m
Subdomain Policy
reject
0m
Percentage
100
0m
RUA
RUF
substack.com. 300 IN DMARC v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; sp=reject; aspf=r;
Text Content
TTL
TXT
SPF
v=spf1 include:_spf.google.com include:mailgun.org include:mail.zendesk.com ~all
4m
TXT
Facebook
facebook-domain-verification=8vbxp2ntmkudc6is3h5r840c9fwo7f
4m
TXT
Google
google-site-verification=4V_X38Yf0J4VJcWFwtG38bOS1nkOWeIWJhticlMgNQE
4m
TXT
Google
google-site-verification=DAkdykID6WqQM6tT7IfSu9_uB7-qIdB039MA_C3T3eA
4m
TXT
Google
google-site-verification=FfNIQIxsRHpj3Y7E_d3N6GFqGgWDZ-sfYojqCilwtqE
4m
TXT
Google
google-site-verification=SXEl7_p4SBszcanSWwVc_3-RFky80c0-94janbeeWI4
4m
TXT
Google
google-site-verification=vQEKLOUDfKNOQAv9W3EUMiRD6e5ibAEPhc2yCzP7big
4m
TXT
TikTok
tiktok-developers-site-verification=7PgqCAJ52ILLOqf2KELd8uaRfJpuzaLQ
4m
TXT
TikTok
tiktok-developers-site-verification=A9XRSo8lWy5CPFJ0bqI04KCpUZGAAq7p
4m
substack.com. 299 IN TXT "v=spf1 include:_spf.google.com include:mailgun.org include:mail.zendesk.com ~all" substack.com. 299 IN TXT "facebook-domain-verification=8vbxp2ntmkudc6is3h5r840c9fwo7f" substack.com. 299 IN TXT "google-site-verification=4V_X38Yf0J4VJcWFwtG38bOS1nkOWeIWJhticlMgNQE" substack.com. 299 IN TXT "google-site-verification=DAkdykID6WqQM6tT7IfSu9_uB7-qIdB039MA_C3T3eA" substack.com. 299 IN TXT "google-site-verification=FfNIQIxsRHpj3Y7E_d3N6GFqGgWDZ-sfYojqCilwtqE" substack.com. 299 IN TXT "google-site-verification=SXEl7_p4SBszcanSWwVc_3-RFky80c0-94janbeeWI4" substack.com. 299 IN TXT "google-site-verification=vQEKLOUDfKNOQAv9W3EUMiRD6e5ibAEPhc2yCzP7big" substack.com. 299 IN TXT "tiktok-developers-site-verification=7PgqCAJ52ILLOqf2KELd8uaRfJpuzaLQ" substack.com. 299 IN TXT "tiktok-developers-site-verification=A9XRSo8lWy5CPFJ0bqI04KCpUZGAAq7p"