How is letras.mus.br?

Looks fine risk 0/100

Registered 23 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 563 ms.

Why

02050100

finecarefulhigh risk

·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.

Site

403

563 ms

HTTPS

60 d

left on a Let's Encrypt certificate

Age

23 years

registered 2003-11-04

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	67.213.118.69 160.202.130.241 160.202.130.29 160.202.130.237
MX	10 alt3.aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 1 aspmx.l.google.com
NS	ns-987.awsdns-59.net ns-62.awsdns-07.com ns-1182.awsdns-19.org ns-1859.awsdns-40.co.uk
TXT	google-site-verification=teyUXTRbDkn9o3LtniBy1391bklWcsTn1pHTjjOwO8A google-site-verification=TjG7dbcpwuGgERE-2WZ5lZ68urSQ5Ys5wKI7ghtPiPs v=spf1 include:_spf.rdstation.com.br include:sendgrid.net ~all v=spf1 ip4:198.61.254.54 ip4:209.85.220.69 include:mailgun.org include:_spf.sscdn.co include:spf.mandrillapp.com include:_spf.google.com include:sparkpostmail.com -all stripe-verification=d1739da71e551f1af6ab7f17b132d0a980096a7158fe6adedc63e120bd64a049 MS=949DB7448FA19B52D8254322FAFAF7EB5B3B6F42 google-site-verification=80cWwRXIAMfSkucAp7jG-FDnjXaZ524-Bivj5ZJBkRA facebook-domain-verification=j63xkqggskpi86bwi0sh6bzyydpg74 google-site-verification=bo0NDY0FyZkbrIRWmOVVRX8DdeK6FvKlksChVToWkwU

Registrationregistrar not reported

registered	2003-11-04
expires	2031-11-04
last changed	2022-03-28
country	BR
nameservers	ns-1859.awsdns-40.co.uk ns-1182.awsdns-19.org ns-62.awsdns-07.com ns-987.awsdns-59.net
status	active

registered 2003-11-04expires 2031-11-04

HTTPS certificate60 days left

valid	yes
issuer	Let's Encrypt
covers	.beelyrics.com, .cifraclub.cc, .cifraclub.com, .cifraclub.com.br, .cifraclub.tv, .cifraclubnews.com.br, .classes.cifraclub.com.br, .formesuabanda.com, .formesuabanda.com.br, .forum.cifraclub.com.br, .guitarbattle.com.br, .letras.academy
protocol	TLSv1.3

issued 2026-10-01expires 2026-12-30

DNSSECinsecure

Domain is not signed with DNSSEC

. → br → mus.br → letras.mus.br

Email authenticationfair

SPF	fail `v=spf1 include:_spf.rdstation.com.br include:sendgrid.net ~all`
DMARC	warning policy quarantine
DKIM	found: google, s1, s2, mail, mx

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade B · 165/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

30/45missing: CAA Records, DKIM Presence

Advanced Security

20/25missing: IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 14 lookups

SURBL MultidomainURIBL MultidomainSpamCop160.202.130.237Barracuda160.202.130.237UCEPROTECT Level 1160.202.130.237SpamCop160.202.130.241Barracuda160.202.130.241UCEPROTECT Level 1160.202.130.241SpamCop67.213.118.69Barracuda67.213.118.69UCEPROTECT Level 167.213.118.69SpamCop160.202.130.29Barracuda160.202.130.29UCEPROTECT Level 1160.202.130.29

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=letras.mus.br" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=letras.mus.br"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on letras.mus.br. Reference: /llms.txt.

Watch letras.mus.br. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days