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twilio.com

93/100

A

Scanned 2026-05-21

Cached result — add ?fresh=1 to force a new scan

Subcheck breakdown

Check	Status	Score
DMARC policy	reject	25/25
SPF record	ok	10/10
DKIM selector	found	10/10
TLS certificate	ok	20/20
WHOIS integrity	ok	10/10
Subdomain takeover	clean	15/15
MTA-STS / TLSRPT	missing	0/5
DNSSEC	unsigned	0/5

Recommendations

Publish MTA-STS: add _mta-sts.twilio.com TXT and host a policy at https://mta-sts.twilio.com/.well-known/mta-sts.txt
Enable DNSSEC on twilio.com — DS records must be published to the com zone by your registrar
Add includeSubDomains to the HSTS header on https://twilio.com/ to extend protection to every subdomain.

Details

Area	Detail
DMARC	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; ruf=mailto:dmarc@twilio.com
SPF	v=spf1 include:twilio.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
DKIM selectors	s1, s2, k1, k2, salesforce, sfdc, zendesk1, zendesk2
TLS certificate	Ok (250 days remaining) — CN=Amazon RSA 2048 M01,O=Amazon,C=US
WHOIS registrar	MarkMonitor Inc.
WHOIS expires	2026-10-26T22:26:18Z
Subdomains (112 subdomains scanned, 0 at risk)	112 found
DNSSEC	Unsigned