How is issuu.com?
Looks fine
risk 0/100
Registered 20 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 73 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
200
73 ms
HTTPS
142 d
left on a GlobalSign nv-sa certificate
Age
20 years
registered 2007-04-19
Blocklists
0
listings across 5 lists
Everything we looked at
DNS records4 record types
| A | 151.101.65.55 151.101.193.55 151.101.1.55 151.101.129.55 |
|---|---|
| MX | 30 alt2.aspmx.l.google.com 10 aspmx.l.google.com 20 alt1.aspmx.l.google.com 50 aspmx3.googlemail.com 40 aspmx2.googlemail.com |
| NS | ns-1343.awsdns-39.org ns-757.awsdns-30.net ns-426.awsdns-53.com ns-1582.awsdns-05.co.uk |
| TXT | fastly-domain-delegation-00331056-2025326 google-site-verification=p_DY5uxkB0uAYklg-sR0Lii2bYnF6ZooXcw2Eyi4rL8 google-site-verification=GBizRM9Z_p17clZXSQMnJjIdyXLjCoDJY6aYG-kbwnQ google-site-verification=xh0flAgyOL5F8z5FQTMUnk4Z0nYehx9lPsDq1d2ntFY google-site-verification=JO5hAUdeQB6RbQhV-_AKYyv6xfJnmVKuTkYtkZYhcLk TAILSCALE-QTxUnggBiedjypLchTwB mixpanel-domain-verify=3d34b526-2c05-4de4-a475-bdc5b58f49c8 google-site-verification=0H3HL1KxMhfdap89AcuCKadjU2QFxgZ0I7CXePAEReE google-site-verification=c6Hy78bVIo4EsMFlp02T8dC2rg_2s2kqhDdVkSQcNFQ v=spf1 include:mail.zendesk.com include:_spf.sparkpostmail.com include:_spf.google.com include:amazonses.com include:spf.mandrillapp.com -all google-site-verification=3yHgeX--mAcr74szFR5gTbIbD1TkraSFdZS_xIm9jMY apple-domain-verification=ElKeVvlCb1VtMkhI facebook-domain-verification=rfrx5vjx0elz3n83h0ydr94nlkptkr miro-verification=50d48af206c43d8ba6a5c568d0b68365b08fd197 atlassian-domain-verification=+SyUybAN4ilkkpHjnTS9UW9fhbIiAlFXshc97OU0IZw+UHVP0I9omo5Jzo7Qg7K+ google-site-verification=1d_IjLk0hz3l3G9KrZeiLEIjloBhk0UKtyEIuGSmGa0 google-site-verification=5CyB-vqN7byHfN1pa3hf-FFj_ecJbkgBJ7iJr3nso98 docusign=828dd772-5bf2-4d4a-9956-c6b07049c55b rippling-domain-verification=217697edd61756fc MS=ms41162561 |
RegistrationGoDaddy.com, LLC
| registrar | GoDaddy.com, LLC |
|---|---|
| registered | 2007-04-19 |
| expires | 2027-04-19 |
| last changed | 2026-04-20 |
| nameservers | ns-1343.awsdns-39.org ns-1582.awsdns-05.co.uk ns-426.awsdns-53.com ns-757.awsdns-30.net |
| status | client delete prohibited client renew prohibited client transfer prohibited client update prohibited |
registered 2007-04-19expires 2027-04-19
HTTPS certificate142 days left
| valid | yes |
|---|---|
| issuer | GlobalSign nv-sa |
| covers | *.issuu.com, issuu.com |
| protocol | TLSv1.3 |
issued 2026-08-31expires 2027-03-18
DNSSECsecure
Domain is properly signed — chain validated by an independent validating resolver
. → com → issuu.com
Email authenticationexcellent
| SPF | pass v=spf1 include:mail.zendesk.com include:_spf.sparkpostmail.com include:_spf.google.com include:amazonses.com include:spf.mandrillapp.com -all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: google |
Whether mail claiming to be from this domain can be checked as genuine.
Security scoregrade B · 165/205
Basic Security20/40missing: DNSSEC Enabled
Record Security30/45missing: CAA Records, DKIM Presence
Advanced Security20/25missing: IPv6 Support
Domain Reputation50/50
Threat Detection45/45missing: Domain Age Check
Blocklists0 listings · 14 lookups
SURBL MultidomainURIBL MultidomainSpamCop151.101.1.55Barracuda151.101.1.55UCEPROTECT Level 1151.101.1.55SpamCop151.101.193.55Barracuda151.101.193.55UCEPROTECT Level 1151.101.193.55SpamCop151.101.65.55Barracuda151.101.65.55UCEPROTECT Level 1151.101.65.55SpamCop151.101.129.55Barracuda151.101.129.55UCEPROTECT Level 1151.101.129.55
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=issuu.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=issuu.com"
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on issuu.com.
Reference: /llms.txt.
Watch issuu.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