Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.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.
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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.
BTLS Certificate Expiry & Recommendations80 days until leaf cert expires — 2 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
BCDN & DeliveryCloudflareREVIEW
A+DNS Records2 A records, 8 ms lookupPASS
| A | 104.18.18.57, 104.18.19.57 |
| AAAA | 2606:4700::6812:1239, 2606:4700::6812:1339 |
| CNAME | — |
| NS | eva.ns.cloudflare.com, max.ns.cloudflare.com |
| MX | 0 packtpub-com.mail.protection.outlook.com |
| TXT | MS=ms77079791 google-gws-recovery-domain-verification=67085002 facebook-domain-verification=m4iqhvdyzgnt1rtxtdfzrsypf63gi8 google-site-verification=4IqRPigqD2-cUnB7oyC8vW9hJVPD-1CklhbG2CzYcKk google-site-verification=EhrsgJ1xswy57ujWukxssZc7LkxKzr_k5GCWDF68sgk google-site-verification=aYn6H9fduNTMAWna17iNt1G1VNPxaakxn2Vta5qgok0 _globalsign-domain-verification=6RYPIPUO2OQDU0pqaDmaEeWmISV7Tz3QQBCYgOv3br _globalsign-domain-verification=HYZk2Fhot5-PhJD3xTIrZBWcnuIiOpkPMyjRmQ2z5L _globalsign-domain-verification=Iiihy-iv_vLdlIMtHvh-aCdqO2T53oCoknhW44njXn SPF v=spf1 a:zgateway.zuora.com include:spf.protection.outlook.com include:servers.... |
| CAA | Lookup not available with standard resolver |
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.
A+Redirect Chain0 redirect(s), 20 ms totalPASS
https://packtpub.com
20 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://packtpub.com | 403 | 20 ms | HTTP/1.1 | cloudflare |
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencepacktpub.com — via Amazon Registrar, Inc., 23 years, 3 months oldPASS
300 days
May 9, 2027
80 days
Issued by Let's Encrypt
23 years, 3 months
Registered May 9, 2003
Enabled
Protects against DNS spoofing
Unknown
2606:4700::6812:1339
Amazon Registrar, Inc.
Expiry timeline
Recommended actions
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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