HOW.IS
?

How is constantcontact.com?

Be careful risk 40/100

Registered 28 years ago, listed on 1 blocklist, valid HTTPS, the site answered 403 in 109 ms.

Why

02050100
finecarefulhigh risk
  • +40Listed on 1 spam/abuse blocklist(s).

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

How constantcontact.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
403
109 ms
HTTPS
40 d
left on a GlobalSign nv-sa certificate
Age
28 years
registered 1998-09-30
Blocklists
1
listings across 5 lists

Everything we looked at

DNS records4 record types
A208.75.122.14
MX20 edgemail2.constantcontact.com
10 edgemail1.constantcontact.com
NSdns1.p01.nsone.net
dns4.p01.nsone.net
dns2.p01.nsone.net
dns3.p01.nsone.net
TXTvalidity-domain-monitoring=lWgicWp5GPvLfdEoFXdAYpMXV
google-site-verification=lMXxJuCIadZI6yIKv7z5_Va70POuM19qU81NU0tmaxI
globalsign-domain-verification=83DF7D9B4CADBA9AB6D6ED1792F009A4
globalsign-domain-verification=607B2BE93D2B60F139751C389A14C13B
atlassian-domain-verification=fMjaVWKHpJhM3aAlDYkNe5/yuAOUIOva2QexA9BN3WIHOkZmfqX9AWdaOicLtJYr
cursor-domain-verification-fad4vy=0NZxtFJAF9pFISdFqx3nMzNyk
openai-domain-verification=dv-tjo2gRJDV0e90MlGZWURanbs
globalsign-domain-verification=C385682A22F86586CCE2465D9544AA1C
v=spf1 ip4:208.75.120.0/22 ip4:205.207.104.0/22 include:_ext.constantcontact.com include:_spf.salesforce.com include:_spf.google.com ~all
globalsign-domain-verification=6FFE99D6D65D30A44C49A374C5143D87
globalsign-domain-verification=5C905CAD6161760D48FA250433C2EEF9
tgXS6TJ3fVTnME8cpaIfgd9fe2rkAsn8kgSVRi/Af/c=
docusign=d814c280-26f9-41c7-aa92-a03b59e6fd58
SFMC-nnhzrK01oLNsym2xcDKcUEXUlbm8OIrlrUxoOGdS
validate.onetrust-domain-verification=8c431f2bfba744d99f5df0ee4ef55df1
google-site-verification=RMx0cdA4nEA6nAg48o0lsv4eb29EbVafa7weQBnSNJQ
google-site-verification=5lHEZKPh-_wYKf6iPhatHRpXj2l0R9NmPQ9wSWIAQag
MS=ms18093078
jamf-site-verification=aFdwoWd1sPeHAeoixINgyw
duo_sso_verification=7HPXqXi0wOuCX7DdMLeu09LySVwMqymRiBWo3e5f1J9JumDaZTfzYPxfcpnbQCRi
canva-site-verification=ZyZ5z6fQIoIHCDU_U8K6YQ
TAILSCALE-WN5I3ZooiwxJsVakFdjs
spf2.0/pra ip4:208.75.120.0/22 ip4:205.207.104.0/22 include:_ext.constantcontact.com include:_spf.salesforce.com include:_spf.google.com ~all
anthropic-domain-verification-y2453z=RP4EoX2XlEAObiHw4Qyfxyif2
cisco-ci-domain-verification=2bd65a16476143d0aebade20fdf9ca88de20694b28dbd9a7630bd6a72c690a63
pendo-domain-verification=n9rM3WLge63EWPA3kOPW1OUEcXg
MS=ms76971383
globalsign-domain-verification=D5A7AFA31C2BFA6174B52F0F9E90C9DF
google-site-verification=Gp7Hv6yLosjKQ_t7gHJROnXoAYK7wlz1XLOBHt_J7HE
globalsign-domain-verification=A899C94328AC5076D4198E6055E9C6E1
reachdesk-verification=1CmlRrcJcF7N7kW8ionhhGt21vydYDeiaGjRKoFAJHCsTyxLVFHOcdUBxBeUrt3H
globalsign-domain-verification=F1462C7038793BEEB6A1FCE7B31E06B7
v0IqpOXySDIxu292XtWFBWVQ2T3C/MLnpiy5EKsfKWg=.
facebook-domain-verification=9wo9l62thl595soh1wjzolqfv3ao8c
google-site-verification=ALoYvB9LP05aK7ddKNWCSrNKI4QPPh647yXxmNq1rJ4
globalsign-domain-verification=1FF969BDF7F6D9B06243EFA8042CBDE7
logmein-verification-code=491874e6-5c3b-4b37-b19e-f523d7d74473
ZOOM_verify_lz7Vk7Mf3ZEzuB6jwtCEVv
google-site-verification=S0PJ1RSXkRxVn-okVzPY9Lzeghej1eIywqeTx0o2MKE
ps-cd-verification=3e13eeb0-a25b-41af-a9d1-d5c8cca8082a
globalsign-domain-verification=1FF9A93F847B1EB612F7EB378BFA8F2F
google-site-verification=9SlseBmCRNaS8PoCIcXUBYR18HWP6RBX9HyD3R5R5Ls
stripe-verification=685340051470B5606798FED265AD82838FDC4D525047AEBAC6F8577B731D91CA
globalsign-domain-verification=FA2D0568288440FE444CE3BEE2B3FD88
google-site-verification=JtNhbwEnbIVid2N5wO0kF9kJ5jfx_ttYqfleBTqKZJY
kF4qrcASQQx6dXlhtT5OqM1QkLhxmOFd9TIEk0+L+Hg=.
google-site-verification=GEYwmfZ7RuvBcI7BT6xQnrNfn1z7gWUKLfVIalnwqeA
Cb20W914dVUL9V8ziCkX1Qo
MS=91FCD146A8340927C3F9723C8F3DC44A5AE57414
meltwater_sso_20260521_triton-36710
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered1998-09-30
expires2029-09-29
last changed2024-10-02
ownerREDACTED FOR PRIVACY
nameserversdns1.p01.nsone.net
dns2.p01.nsone.net
dns3.p01.nsone.net
dns4.p01.nsone.net
statusclient delete prohibited
client transfer prohibited
client update prohibited
registered 1998-09-30expires 2029-09-29
HTTPS certificate40 days left
validyes
issuerGlobalSign nv-sa
covers*.constantcontact.com, constantcontact.co.uk, www.constantcontact.co.uk, constantcontact.in, www.constantcontact.in, constantcontactbook.com, www.constantcontactbook.com, constantcontactplaybook.com, www.constantcontactplaybook.com, constantcontact-playbook.com, www.constantcontact-playbook.com, constantcontactsocialplaybook.com
protocolTLSv1.3
issued 2025-11-10expires 2026-12-12
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → constantcontact.com
Email authenticationexcellent
SPFpass v=spf1 ip4:208.75.120.0/22 ip4:205.207.104.0/22 include:_ext.constantcontact.com include:_spf.salesforce.com include:_spf.google.com ~all
DMARCpass policy reject
DKIMfound: google, k1, s1, s2

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

Security scoregrade C · 135/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
30/45missing: CAA Records, DKIM Presence
Advanced Security
20/25missing: IPv6 Support
Domain Reputation
30/50missing: Domain Blacklist Status, Reputation Confidence Alert
Threat Detection
45/45missing: Domain Age Check
Blocklists1 listing · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop208.75.122.14Barracuda208.75.122.14UCEPROTECT Level 1208.75.122.14

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=constantcontact.com" \ -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=constantcontact.com"

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

IPv6. IPv6 readiness grade for constantcontact.com Does constantcontact.com work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch constantcontact.com. 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