HOW.IS
?

How is optimizely.com?

Looks fine risk 0/100

Registered 17 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 184 ms.

Why

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

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

How optimizely.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
184 ms · ends at www.optimizely.com
HTTPS
86 d
left on a Let's Encrypt certificate
Age
17 years
registered 2010-01-11
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A216.150.16.193
216.150.1.193
MX10 de-smtp-inbound-1.mimecast.com
20 de-smtp-inbound-2.mimecast.com
NSharmony.ns.cloudflare.com
doug.ns.cloudflare.com
TXTgoogle-site-verification=4JvIJnZJei_AHvqRmTRfA0DoBo9VA96bgQSsqH0Impw
atlassian-domain-verification=fVxueGq1T9CLx1FmNDg7+//C3Q8kRlgPyJ92oiCabOlE0FQgWQH4rmJubpj6v9hE
mixpanel-domain-verify=400a27dd-7cc3-468a-8564-e4f52d40c058
google-site-verification=RNDBwtT0w-dC7jgY2h4a785AmbqEXI7epedh-8cCg1g
figma-domain-verification=1912c435587480ca0caf3a2a631b9a603d1924f3b3d08d196d40aef304ee7ce8-1733954230
google-site-verification=F9cHkOOFB7B48BIiVW5OjoWxz8olRXaP2JefPKVPYv4
MS=ms74851995
google-site-verification=YTf8W8ct20t0_Pk4CWBP3WIlzYoa-AbATixOVOSX1So
zoom-domain-verification=ZOOM_verify_18e0baa285e04b2c983733dcd83fce57
docusign=5ef03274-ba7e-4497-b1c8-68822293b6df
_globalsign-domain-verification=f-B_7ErtvSe_2e1SkhSsTab6DQA-AVd2vcvY3gqskQ
hcp-domain-verification=2e64a27c64e94e6e763e934ce2b1a5574d32e0493348013cfa12289ec8b077b1
dropbox-domain-verification=1gn35nocfdjx
teams.optimizely.com dmb9xl3d5frmkq48vddtsf6cy73jg48c
docker-verification=11bd769c-c17a-405b-9a6d-dad70ad9e237
loaderio-69745689fd1dbf2e7a4fef37b749c433
Verification for the SSL for www.optimizely.com. Digicert Order # 00502638. Optimizely contact: dogan@optimizely.com
_globalsign-domain-verification=xACDE3CJMcS0Ud2e9XTDQ7O7axmXzPg8Mp9rDVIgaT
google-site-verification=I398ijOehdDlmeyNnoTWkurrboteERLDPcsh0lTE5_g
apple-domain-verification=Q7KwgmChGjUIkAjJT8Su-e81y48GoIDKdrWJKZCflGI
protonmail-verification=2c10e0613f5e323cafcac05b050c42a119f7c0c6
carta-domain-verification-j5c0wv=PVHGuxCt3hpJ6mlHJnunPYJlm
google-site-verification=3p_UqtkCzX5Qgaf4Qa8vCVOADcQxlaimwxDIPDPU3J4
google-site-verification=5I-ImxYUlKGA58rILw7HPg4bhErsy6qZig37I-DQTG4
google-site-verification=awCCHxysSWlId2pJybFVzs-Z_YoSd2tOhGlbnu1NWsk
cursor-domain-verification-t5qp01=phvHwGecfsDxZ5DGLaUpqt9QT
docusign=78f5a0dc-5599-4771-939a-7479d9f19a15
apple-domain-verification=9Mq9EOa61FT430k8
Digicert Order # 00498813. Optimizely contact: Dogan Ugurlu <dogan@optimizely.com>
_hfsdqdgrk9jr6farwdpsbq8quhxgcov
mongodb-site-verification=9UVwoclVFO1wQoSS1RiFxUMm8F2d9tUj
docker-verification=81db037f-4d8d-4b97-8480-45e23568bad7
gitkraken-domain-verification=428606b7bda6111075c267457625b3dc0c0efb46f5498e10270249dda69a4c05
FMTFZVQRM
Verification for the SSL for maven.optimizely.com. Digicert Order # 00584621. Optimizely contact: Dogan Ugurlu <dogan@optimizely.com>
00D4J0000002msD=1TBPz00000000hZ
segment-site-verification=AaQwxphohytWn6ITgojBF75WGyY6FTle
google-site-verification=MnJ3tcQo7PaOcyYyN73AjK83tEDmOOYoV8SCT2U6oZE
MS=ms12641694
sinch-domain-verification=4251594e-97a0-48da-9b27-1ecd0e88d638
google-site-verification=M2p2oNOfIy17Ci7kj8vS9RH4YKCf6lfxyH4aa-pro_E
zapier-domain-verification-challenge=ec9e02b0-2df0-4698-b412-b58a2e23fa8b
google-site-verification=hY82UoEGpukg4bWtEBMnoEDu4U_kFECFAI61SyxjKek
k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDEp2HXojOuMp8W2mYAQWb4SCkK/OCr/lyMDiN67Ib/WHjlW65xfkprr5dfFif9wwM/XCqPG8OiYlUUzdTYzod0lFAsaWInsQB9JKNXKz9TRfDlRisHQye6gTefKvwLdN8hpQ0vR40a9z1pEBhP/rjnT73bwEe+oTgmsyTLbZ3UxwIDAQAB
loaderio=9f2321067d0a5ed2165da78a078a2125
docker-verification=4463daac-0d0c-4db8-ba57-eda20ab9f85f
amazonses:xxLSLODJvdUPkNOdqLqR2X5AnhJzIWBvgvVvH5XYwsY=
google-site-verification=RGGeHfceOB0_bznjJqtJJjVfjtUE3ZR2KpgzRfCcH90
Verification for the SSL cert for help.optimizely.com Digicert Order # 00435673. Optimizely contact: Dogan Ugurlu <dogan@optimizely.com>
google-site-verification=HPlj5QbZTQcYZ7ZrWKvVw6TGQ6Js8mjkP-lRHU272aY
openai-domain-verification=dv-At5TJCxtaR4p3AcFNaOZnDkn
docker-verification=4f9e8898-2616-42e6-8622-0258237a99fd
bugcrowd-verification=976ed661be12db673bc241ab9adedd78
adobe-idp-site-verification=edbef1f3fcf34f3db2121d4b6aa25e37b75e61879e526da209fbb3d534c1e9ba
Verification for the SSL for blog.optimizely.com. Digicert Order # 00406293. Optimizely contact: Tommy Giglio <tommy@optimizely.com>
google-
RegistrationGoDaddy.com, LLC
registrarGoDaddy.com, LLC
registered2010-01-11
expires2027-01-11
last changed2026-01-11
nameserversdoug.ns.cloudflare.com
harmony.ns.cloudflare.com
statusclient delete prohibited
client renew prohibited
client transfer prohibited
client update prohibited
registered 2010-01-11expires 2027-01-11
HTTPS certificate86 days left
validyes
issuerLet's Encrypt
coversoptimizely.com
protocolTLSv1.3
issued 2026-10-23expires 2027-01-21
DNSSECsecure

Domain is properly signed — chain validated by an independent validating resolver

. → com → optimizely.com
Email authenticationexcellent
SPFpass v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
DMARCpass policy reject
DKIMfound: google, selector1, selector2, s1, s2, resend

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

Security scoregrade B · 155/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
30/45missing: CAA Records, DKIM Presence
Advanced Security
20/25missing: IPv6 Support
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop216.150.1.193Barracuda216.150.1.193UCEPROTECT Level 1216.150.1.193SpamCop216.150.16.193Barracuda216.150.16.193UCEPROTECT Level 1216.150.16.193

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=optimizely.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=optimizely.com"

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

Watch optimizely.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