How is linode.com?
Looks fine
risk 0/100
Registered 24 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 79 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
79 ms
HTTPS
20 d
left on a Let's Encrypt certificate
Age
24 years
registered 2003-01-26
Blocklists
0
listings across 5 lists
Everything we looked at
DNS records5 record types
| A | 23.202.230.228 23.202.230.222 |
|---|---|
| AAAA | 2600:1408:ec00:2f::1735:b89 2600:1408:ec00:2f::1735:b84 |
| MX | 10 mxa-00190b01.gslb.pphosted.com 10 mxb-00190b01.gslb.pphosted.com |
| NS | a7-65.akam.net a12-65.akam.net a3-67.akam.net a16-64.akam.net a1-249.akam.net a4-64.akam.net |
| TXT | b9vnqzyfsl9dkjxtlp39xz1pn6qnmnsc dtm-domain-verification=YkO_GJYRE_W_o9DSThOI34Yy6aHLITePNr-3zaVl_H4 google-site-verification=pUYBl3BO8G5rgQrfHoQDxfu7HqKEcnGY7v20KYL0vNQ v=spf1 a:outbound.mail.linode.com include:sendersv4b.mail.linode.com include:_spf.google.com include:mktomail.com include:spf-009e7401.pphosted.com ip4:52.71.30.102 ip4:97.107.141.36 ip6:2600:3c03::f03c:91ff:fe6e:fda0 ip4:66.175.208.40 ip6:2600:3c03:e000:af2::1 ip4:173.255.198.11 ip4:66.175.211.242 ip6:2600:3c00:e000:07e9::1 ip6:2600:3c03:e000:bfc::1 ip4:67.231.149.131 ip4:67.231.157.127 ip6:2620:100:9001:583::1 ip6:2620:100:9005:57f::1 -all google-site-verification=MKjylAJoYaAgAUs3p_fqq-Ni_It6Aj2AyS1sIEi0Ei4 google-site-verification=H-BI4P6tXdj3SCxfVfiJQbxX3p94r8_SXuGTkndOybI 1password-site-verification=XG272XO7HRFGBCO7BHRE55R6ME MS=ms93951359 smartsheet-site-validation=8ft-lsEKUr2E2GS-WYZeQWn934ECdlgu MS=ms97506004 |
RegistrationMarkMonitor Inc.
| registrar | MarkMonitor Inc. |
|---|---|
| registered | 2003-01-26 |
| expires | 2027-01-26 |
| last changed | 2024-04-15 |
| owner | REDACTED FOR PRIVACY |
| nameservers | a1-249.akam.net a12-65.akam.net a16-64.akam.net a3-67.akam.net a4-64.akam.net a7-65.akam.net |
| status | client delete prohibited client transfer prohibited client update prohibited server delete prohibited server transfer prohibited server update prohibited |
registered 2003-01-26expires 2027-01-26
HTTPS certificate20 days left
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | api.linode.com, assets.linode.com, blog.linode.com, careers.linode.com, cloud-estimator.linode.com, cloud.linode.com, content.linode.com, design.linode.com, developers.linode.com, docs.staging.linode.com, extapi.dev.linode.com, extapi.linode.com |
| protocol | TLSv1.3 |
issued 2026-08-18expires 2026-11-16
DNSSECinsecure
Domain is not signed with DNSSEC
. → com → linode.com
Email authenticationexcellent
| SPF | pass v=spf1 a:outbound.mail.linode.com include:sendersv4b.mail.linode.com include:_spf.google.com include:mktomail.com include:spf-009e7401.pphosted.com ip4:52.71.30.102 ip4:97.107.141.36 ip6:2600:3c03::f03c:91ff:fe6e:fda0 ip4:66.175.208.40 ip6:2600:3c03:e000:af2::1 ip4:173.255.198.11 ip4:66.175.211.242 ip6:2600:3c00:e000:07e9::1 ip6:2600:3c03:e000:bfc::1 ip4:67.231.149.131 ip4:67.231.157.127 ip6:2620:100:9001:583::1 ip6:2620:100:9005:57f::1 -all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: k1 |
Whether mail claiming to be from this domain can be checked as genuine.
Security scoregrade B · 160/205
Basic Security10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security30/45missing: CAA Records, DKIM Presence
Advanced Security25/25
Domain Reputation50/50
Threat Detection45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop23.202.230.228Barracuda23.202.230.228UCEPROTECT Level 123.202.230.228SpamCop23.202.230.222Barracuda23.202.230.222UCEPROTECT Level 123.202.230.222
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=linode.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=linode.com"
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on linode.com.
Reference: /llms.txt.
Watch linode.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