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
BCrawlabilityno robots.txt, no sitemapREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
A sitemap helps search engines discover and index your pages more efficiently.
No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.
Learn more ▾ ▴
A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.
Source: sitemaps.org / Google Search Central
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
No sitemap found
Adding a sitemap helps search engines discover your pages.
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations197 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, 92 ms lookupPASS
| A | 15.197.255.153 |
| AAAA | — |
| CNAME | — |
| NS | dns2.comlaude-dns.net, dns4.comlaude-dns.eu, dns1.comlaude-dns.com, dns3.comlaude-dns.co.uk |
| MX | 10 de-smtp-inbound-1.mimecast.com 10 de-smtp-inbound-2.mimecast.com |
| TXT | _amazonses.no_reply_Medical_eJournal@astrazeneca.com anthropic-domain-verification-m0h1az=p2BRcnznRyYIMr1EFDANUS5C1 atlassian-domain-verification=iaJoW0lrxaNXRZhnjvdexzUXFKwOkUdKg1vjzLhzIFdZXxETMT... docker-verification=125c73c5-0e8e-4518-80a6-646afdcf897c apple-domain-verification=d2wxKCm8HfINgyfA docker-verification=f4deb656-177c-4d41-bdd9-46d212197232 bbRjK75VZ9Tlkv7N+w0ne/oNE2zvhmmj7MzPRNH2i0gKJ0T7m5g+pqVvHbp2yXg82tTYs/obgKWxOZMH... onetrust-domain-verification=b30c6b0d71ec4ef1b09b7fc6e597cfa5 atlassian-domain-verification=MfEAkgMSm5yT1OKkBoHgSY4NLuS8zswbalHeKqfVjSXPm6e0vz... SPF v=spf1 include:spf.mandrillapp.com ip4:74.116.124.0/22 ip4:199.168.64.0/22 ip4:2... msfpkey=30nxkpa53zbwucm2ay3giyc19 flexera-domain-verification-zuyujmbgcyucucua smartsheet-site-validation=MpoSX9kJTFRdAoxx3EKwzMfiaB3fnyFk unity-sso-verification=c3e4938e-9e44-4793-a718-beb8b5a7b1b2 jamf-site-verification=zNmZAg3i1fNQf8IyHjmdBQ adobe-idp-site-verification=47b89729760f6fc12f80ebce680d38cb05f83102594d174d89ce... 648cr1deg26r8b46cae77h2vsv flexera-domain-verification-gofcdfyguuufdnxj docusign=d6c41745-d272-42ad-a3bf-dfbec040d37d docusign=e96011ce-d1a3-4c10-9f20-6f5cfaf71243 atlassian-domain-verification=O2y11SZlhLGLi5/+Z+YMbDujfrdvuNfyh5oDbXCXcDh8vQU2w7... facebook-domain-verification=0fdyo6hgn9d9va1viobcntilzqbsex teamviewer-sso-verification=3b8fd40561d9426caa0d056e7668202c twilio-domain-verification=f885f321094fbe1c9a72bb8063f403cd docker-verification=4ec8305a-d76a-46b4-bd4b-21520ae7f219 miro-verification=2cf420b8796a6824cc7529b03125fb38173fcb26 asv_domain=7cd38fb8d09e106217281a743384cad1 cisco-ci-domain-verification=6e234d1851960c6e70f6c5ecfe2d37c71097d6e5f20f7c9fe25... mailru-verification: 04c85292a18fcd4a mongodb-site-verification=A9Nz4lDYsdvWjWoTkfU5KsvtizqwVkPy amazonses:B5OLJWMOTJtP7eWAVI18U6EUnFbX6h97vHJvNDUWyvg= onetrust-domain-verification=ac41e6c732df497e82fd30e77d3e09b7 no_reply_Medical_eJournal@astrazeneca.com e6jiv217daev6t61kgi8jpmi8k google-site-verification=1wAEdLFbV-SX_4BM2yTkTNOu0r4A-Yz-YgDxu_9LKkY flexera-domain-verification-agvqyfjdggaspjvw atlassian-domain-verification=eioaRuYMxV64iADocP0NJf7MUWa8P9CezrQ1Pqu2ptXWxOjsqs... box-domain-verification=0c99a2658be6380d1f4ba8d8c3856862c6c70f1c95b77fbe9a67e69c... rc44lqb7n3p6hsmf3tsag8iku0 amazonses:z8icbjDf/1zMlNGbixtt8aDUZi4EC8GQ7TktFvRN2NU= |
| 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), 854 ms totalPASS
https://astrazeneca.com
414 ms · HTTP/1.1
https://www.astrazeneca.com
440 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://astrazeneca.com | 301 | 414 ms | HTTP/1.1 | Apache |
| 2 | https://www.astrazeneca.com | 200 | 440 ms | HTTP/1.1 | Apache |
See the visual redirect chain in the HTTP Probe tab →
A+Domain Intelligenceastrazeneca.com — via Nom-iq Ltd. dba COM LAUDE, 27 years, 9 months old, hosted on AWSPASS
174 days
December 7, 2026
197 days
Issued by Sectigo Limited
27 years, 9 months
Registered December 8, 1998
Not enabled
Protects against DNS spoofing
AWS
ASN AS16509
15.197.255.153
Nom-iq Ltd. dba COM LAUDE
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