HOW.IS
?

How is coursera.org?

Looks fine risk 0/100

Registered 15 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 329 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

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

How coursera.org looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
329 ms · ends at www.coursera.org
HTTPS
130 d
left on a Amazon certificate
Age
15 years
registered 2012-01-12
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A13.226.238.108
13.226.238.65
13.226.238.8
13.226.238.21
MX10 aspmx.l.google.com
30 aspmx4.googlemail.com
30 aspmx2.googlemail.com
30 aspmx5.googlemail.com
20 alt1.aspmx.l.google.com
30 aspmx3.googlemail.com
20 alt2.aspmx.l.google.com
NSns-688.awsdns-22.net
ns-1590.awsdns-06.co.uk
ns-258.awsdns-32.com
ns-1481.awsdns-57.org
TXTcalendly-site-verification=64omHfDAglvn8DMNiDkbUUpJZfQEhGB5EFKA1sQYc
jamf-site-verification=Q2xELHJlL4PRcETKdUHldQ
rzp-site-verification=0e1f055c2e81430150efedded50e7992
onetrust-domain-verification=bc353cda9f49402e8b2ac8a3b3e86286
376174617-10056694
atlassian-domain-verification=iztR9OQCHGIVBm5w5PmFPf1nTaqiOROSuNTF9Kv0idnfzCBmAsbfwGEF2aOK+yo4
google-site-verification=874wxzrE4FAJO81XTCXyH6WYnWZAMdlbMRXI3lfI0bw
google-site-verification=L8lg2XWlLydULXIxANaXcbkcCg3UGYGMRp8y0wi8aXs
google-site-verification=UGpuPtZLCcMKFmgAeN4q6EbvxJn56A8Jz0sgW3yVKmA
google-site-verification=fFsckLsIOub_171zkeWLBQ72SvjwGSPsz209wwTtmX4
canva-site-verification=m3eGQL4tz88BqXJO92JRpw
google-site-verification=PDgfi1HUgagq2NZOh86B3PpGnjDyNXdUr9iyWzDjONM
lovable_verification=01oL6h2mkM0xtkXhCoKq
spf2.0/pra include:amazonses.com include:sendgrid.net include:_spf.google.com include:spf.mtasv.net -all
hubspot-domain-verification=ZTM1ZDk4NGEtNWU5Ny00NDJiLWIwNTQtZTA1NGJhZmU3MzZh
docusign=05d7ee1b-a029-4b94-912a-25bb3c4a2bed
pinterest-site-verification=de56615624ae5add3887913c5230901c
google-site-verification=61uiBFuqY-MYJHWt_8qbU00Rsn7Nq_njU5eMUG0NlrY
v=spf1 include:sendgrid.net ip4:24.6.102.21 ip4:50.16.53.44 include:_spf.google.com include:amazonses.com include:spf.mtasv.net include:_spf.salesforce.com -all
google-site-verification=tbpsWy5oBEvo-Kod36Lqsb3qRK0h_divcCGAeUdVZlk
stripe-verification=95449f6ae01b02ef7f65b59ee2f3ed14bac52c49aaa1519e57b864b70baede3a
facebook-domain-verification=46dep9ql4m6it0wahwkhiou7xit57h
google-site-verification=BbSjFsQN-aTkQDOiar6q3O4fPzSlgepoOdM3fMuCXFA
anthropic-domain-verification-r913z0=qHfIpP1D8b5nWxj2rpstnqRZ1
cisco-ci-domain-verification=5b418d2526e560d4ec96988886c86e7930c6936b68215183295356a4e4bf36d7
google-site-verification=l-IugqqOHDGlHpUHfv3e6z8J1koLgfGSem04lqBA_B8
jamf-site-verification=AmVhIhwqDzkoVxg_B0K81w
openai-domain-verification=dv-ykQklEbL6szace8vG1l7ejkQ
stripe-verification=0f6967e13ea84d76953d1c3f2dc9eb80e82f090fff99161cd2fa957f55a71d60
paloaltonetworks-site-verification=3d8b8eeec8974a6c2b181f7decddc8a96d9cbdcb8f39e4923c53d477a96f6d37
yandex-verification: 7472d03e746e191a
cursor-domain-verification-kg2va5=P61NAJ77jH4Kuavd9jaD3I4Bw
docker-verification=6792a290-383f-4d78-9f9b-71f46df7b6b2
zoom-domain-verification=6fb6c268-238e-477b-ba40-2f0164695cd7
miro-verification=d5e807f40d602cde4051496eaaa95234e158ada0
apple-domain-verification=8gxy28dzSlSOYkUI
BthfBdp8W7Bqmm87eNGy
atlassian-domain-verification=pwnyCbGEmC6E08lYJGO/SYkQvbjFS+OXy03eVMG75U52Edj0vbZGBjdaorxh+PUE
google-site-verification=nLfEbuY6OaO0lfas7ywHqpPnOMnobNONSJ0hnbJO9co
MS=ms91657421
elevenlabs=iuq-HrTSPpSbgooOeznbfY9bR-awTAYggzjFxD0Q6Rw
google-site-verification=H2oN7Mv4QCzOClwXz1j30f-4544byEDxyEk0o3eluE0
stripe-verification=34fd6b74183c244d59d572c162e5b77fe6eed5e5205296151f49dda7b68670eb
loom-site-verification=7b75ba5c84f6455bb4fccb7932970dfa
RegistrationGoDaddy.com, LLC
registrarGoDaddy.com, LLC
registered2012-01-12
expires2027-01-12
last changed2026-08-12
nameserversns-1481.awsdns-57.org
ns-1590.awsdns-06.co.uk
ns-258.awsdns-32.com
ns-688.awsdns-22.net
statusclient delete prohibited
client renew prohibited
client transfer prohibited
client update prohibited
registered 2012-01-12expires 2027-01-12
HTTPS certificate130 days left
validyes
issuerAmazon
coverscoursera.org, *.coursera.org
protocolTLSv1.3
issued 2026-08-23expires 2027-03-08
DNSSECinsecure

Domain is not signed with DNSSEC

. → org → coursera.org
Email authenticationexcellent
SPFpass v=spf1 include:sendgrid.net ip4:24.6.102.21 ip4:50.16.53.44 include:_spf.google.com include:amazonses.com include:spf.mtasv.net include:_spf.salesforce.com -all
DMARCpass policy reject
DKIMfound: google, s1, s2

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 MultidomainSpamCop13.226.238.108Barracuda13.226.238.108UCEPROTECT Level 113.226.238.108SpamCop13.226.238.65Barracuda13.226.238.65UCEPROTECT Level 113.226.238.65SpamCop13.226.238.8Barracuda13.226.238.8UCEPROTECT Level 113.226.238.8SpamCop13.226.238.21Barracuda13.226.238.21UCEPROTECT Level 113.226.238.21

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=coursera.org" \ -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=coursera.org"

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

Watch coursera.org. 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