Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
CURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
BTLS Certificate Expiry & Recommendations67 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records1 A records, 104 ms lookupPASS
| A | 170.114.0.12 |
| AAAA | — |
| CNAME | — |
| NS | ns-481.awsdns-60.com, ns-1861.awsdns-40.co.uk, ns-968.awsdns-57.net, ns-1473.awsdns-56.org |
| MX | 10 mxb-00569201.gslb.pphosted.com 10 mxa-00569201.gslb.pphosted.com |
| TXT | v=DMARC1; p=reject; ri=3600; rua=mailto:sesbounce@zoom.us,mailto:dmarc_rua@email... Account Engagement emails pass SPF automatically, but we recommend setting it up... s4pcsx9yj8thv2vb6gh6ryydd05zvcr9 MS=ms37328709 google-site-verification=yiEieNiefNiSqgLq5rY_z_HyZ4HjDX_0yJlJME33_jA pardot84442=66c53a10788b0276a0880d5d21a71b44df9a3c5692e545acce46644ea73b1cc6 HaFoSdUeCSdJo9U8lG@NWZ6vnoRltUteEAl&yuY$$eE25sKJguFH58Lss%9@e73OK#XigH^i3mCDjax&... nintex.5e7289cea709bf0d10e77561 anthropic-domain-verification-mzg56s=vpNmDWwfLVSNLFCCywtMb6Hns h1-domain-verification=5yw85Ewx1obuckMSkZQokfDYewnzdBw9JqKmZWMXqFs2F3cq spycloud-domain-verification=25022702-4ddc-4746-be61-c2baf9b129e9 dropbox-domain-verification=9dklsyoh0ul stripe-verification=56bc5cf2da44b2033da49b45ed3789209db29432268975666693a750ecfd... google-site-verification=k1nKdEppgAfcBIQjwlOflCohpA7U4fc4PhIhwNrHf1c google-site-verification=wa9RTNAmvbZSMxaJqaXeIjJ7NHBNN7xCuBKD1sZuDfY adobe-idp-site-verification=7116ab50a89b2c2402382aea3362209410eac90f2a590f358ce1... apple-domain-verification=bzL9n7DPRh8nIyQU atlassian-domain-verification=o4YG+mXlOE6uTJb7uGimcl9DJZnVg4aimBCf/4UrplRJvMk84J... smartsheet-site-validation=WHwoPMjyyUbL71JC9sECier4NQyyIVaL sending_domain84442=f09895e4aa7f6a4550421683b7e5d817ba38189dcc438f14daf27125a533... 06n3zb0ycwlgmqr4c9l9frn370klrcvv SPF v=spf1 mx include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.google.com i... docker-verification=5d64ad19-0f15-46a0-9bc3-817e577eb276 |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 549 ms totalPASS
https://zoom.com
385 ms · HTTP/1.1
https://www.zoom.com
164 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://zoom.com | 302 | 385 ms | HTTP/1.1 | zoom |
| 2 | https://www.zoom.com | 200 | 164 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
A+Crawlabilityrobots.txt present, sitemap with 5454 URLsPASS
User-Agent: *
Disallow: /download/*/Zoom_launcher.exe
Disallow: /download/*/zoomusLauncher.zip
Disallow: /docs/image/new/brand/outdated/
Disallow: /docs/doc/2-Page-All-Products.pdf
Disallow: /docs/doc/zoom-apps-security-privacy-faq.pdf
Disallow: /docs/doc/zoom-apps-data-management.pdf
Disallow: /wc/*
Disallow: /web/*
Disallow: /share*
Disallow: /support*
Disallow: /j/*
Disallow: /z/*
Disallow: /s/*
Disallow: /u/*
Disallow: /w/*
Disallow: /e/*
Disallow: /account*
Disallow: /start*
Disallow: /postattendee*
Disallow: /rec/*
Disallow: /register*
Disallow: /webinar/register/*
Disallow: /webinar/registerevent/*
Disallow: /meeting/register/*
Disallow: /*oauth_signin
Disallow: /my/*
Disallow: /download2*
Disallow: /*?
User-agent: Googlebot
Allow: /join
User-agent: LinkedInBot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: facebookexternalhit
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: Twitterbot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: PinterestBot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: InstagramBot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: Slackbot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: WhatsApp
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: redditbot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: Tumblr
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: TikTokBot
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
User-agent: Snapchat
Allow: /webinar/register/*
Allow: /webinar/registerevent/*
Allow: /meeting/register/*
Sitemap: https://zoom.us/sitemap.xml
A+Domain Intelligencezoom.com — via MarkMonitor Inc., 27 years, 4 months old, hosted on AWSPASS
506 days
December 2, 2027
67 days
Issued by DigiCert Inc
27 years, 4 months
Registered April 22, 1999
Not enabled
Protects against DNS spoofing
AWS
ASN AS14618
170.114.0.12
MarkMonitor Inc.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.
Learn more ▾ ▴
Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.
Source: ICANN / domain-security best practice