Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BTLS Certificate Expiry & Recommendations80 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- 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
BCDN & DeliveryCloudflareREVIEW
A+DNS Records2 A records, 40 ms lookupPASS
| A | 104.20.31.133, 172.66.167.1 |
| AAAA | 2606:4700:10::6814:1f85, 2606:4700:10::ac42:a701 |
| CNAME | — |
| NS | athena.ns.cloudflare.com, derek.ns.cloudflare.com |
| MX | 0 emerald-com.mail.protection.outlook.com |
| TXT | MS=ms64303931 amazonses:9b8LJOXdom5cjAhHii+f8zQiJRcoeQdwOJLd8dHwcfM= bw=zDK0WVxhoN8SWgSSBl1ruTnzpJaJ2i5cIxDGlH5pLtmm SPF v=spf1 ip4:203.200.192.105 ip4:107.21.37.86 ip4:203.200.192.109 ip4:134.213.195.... google-site-verification=M4d9bgypRCGN4DusH6fpUChU5qM-Ny24fGSxnodo4uk google-site-verification=B801E-BzdbgU3YKlifSz5is0NHt5dKgbe2D7cyh77Hg UK-federation-domain-verification=fb87a4a118cec0e11a2ed9799138f0eb k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDpDCE+FicPuc28f0mppTrjpIHMXo... k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCnIo1zyP/0vzEGusrGEDK1RI3CXK... |
| 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.
ARedirect Chain1 redirect(s), 168 ms totalPASS
https://emerald.com
59 ms · HTTP/1.1
https://www.emerald.com/
109 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://emerald.com | 302 | 59 ms | HTTP/1.1 | cloudflare |
| 2 | https://www.emerald.com/ | 403 | 109 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+IPv6 ReadinessIPv6 reachable (17 ms)PASS
ACrawlabilityrobots.txt present, no sitemapPASS
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
User-agent: 008
Disallow: /
User-agent: *
Disallow: /bin/
Disallow: /config/
Disallow: /app_data/
Disallow: /dlls/
Disallow: /App_Themes/
Disallow: /signin.aspx
Disallow: /searchresults.aspx
Disallow: /search-results
Disallow: /advancedsearch.aspx
Disallow: /advanced-search
Disallow: /DownloadFile/
Disallow: /downloadimage.aspx
Disallow: /Citation/Download
Disallow: /Shibboleth.sso/
Disallow: /SignInShibboleth.aspx
Disallow: /lookup/external-ref
Disallow: /user/logout
Disallow: /cgi/pmidlookup
Disallow: /Themes/Client/app/img/favicons/manifest.json
Disallow: /lookup/google-scholar
Disallow: /store/*
Allow: /cassette.axd/stylesheet/
Allow: /cassette.axd/script/
Allow: /cassette.axd/manifest.xml
Disallow: /*.axd
Disallow: /specificToClient1/
User-agent: ChatGPT-User
Allow: /
User-agent: OAI-SearchBot
Allow: /
User-agent: Perplexity-User
Allow: /
User-agent: PerplexityBotClaude-SearchBot
Allow: /
User-agent: Claude-User
Allow: /
Sitemap:https://www.emerald.com/data/sitemap/sitemap_Collections.xml
Sitemap: https://www.emerald.com/data/sitemap/Site_1/sitemap_books_site1.xml
Sitemap: https://www.emerald.com/data/sitemap/sitemap.xml
No sitemap found
Adding a sitemap helps search engines discover your pages.
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceemerald.com — via GoDaddy.com, LLC, 29 years, 3 months oldPASS
337 days
June 19, 2027
80 days
Issued by Google Trust Services
29 years, 3 months
Registered June 20, 1997
Not enabled
Protects against DNS spoofing
Unknown
2606:4700:10::6814:1f85
GoDaddy.com, LLC
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