Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BTLS Certificate Expiry & Recommendations66 days until leaf cert expires — 5 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- 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, 7 ms lookupPASS
| A | 104.18.39.123, 172.64.148.133 |
| AAAA | 2a06:98c1:3103::6812:277b, 2606:4700:4405::ac40:9485 |
| CNAME | — |
| NS | lee.ns.cloudflare.com, rachel.ns.cloudflare.com |
| MX | 10 us-smtp-inbound-1.mimecast.com 10 us-smtp-inbound-2.mimecast.com |
| TXT | MS=ms90012115 dropbox-domain-verification=3iz4yeu6dpz4 facebook-domain-verification=tw2hjljigp6ig4hqfu14hc0zw0okp0 google-site-verification=9HJza0VISLFgshXaNTb1OssRiUuN405KUFrLuGFg33o google-site-verification=PidGfJvBxOcg45eBaGnRiKwR_IoeHvXPQsDUSQLnPYE google-site-verification=T6WqIYJLtSw8A0gb4_jlLZKKZHFaapOtcwji0TzAZ0o google-site-verification=dF3oXnZea9hcen0a8FzggCtr77rj37wbMaFMfQjtun4 google-site-verification=h83m43Zth6Jz_aIZ3xcFftU_652PF18qFIZbNzwzngI google-site-verification=o9pJH_1Znn0VqK4SWWU4nx2iw0WhHFA4XX_UKDzh2TE SPF v=spf1 ip4:85.222.158.205 ip4:85.222.158.206 ip4:85.222.158.197 include:_spf.sal... |
| 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), 26 ms totalPASS
https://tandfonline.com
26 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://tandfonline.com | 403 | 26 ms | HTTP/1.1 | cloudflare |
A+IPv6 ReadinessIPv6 reachable (1 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
Sitemap: https://www.tandfonline.com/sitemap-index-1.xml
User-agent: *
Disallow: /action
Disallow: /help
Disallow: /search
Disallow: /feedback
Disallow: /rss
Disallow: /page/account-confirmation-thanks
Disallow: /media
Disallow: /medical-research
Disallow: /servlet/linkout
Disallow: /na101/
Disallow: /na101v1/
Disallow: /na102/
Disallow: /doi/mlt/
Disallow: /topic
Disallow: /author/
Disallow: /doi/metrics/
Disallow: /keyword/
Disallow: /action/showPublications*ConceptID=*
Disallow: /action/showPublications*alphabetRange=*
Disallow: /doi/epdf/*
Disallow: /pricing/*
Disallow: /doi/epub/*
Disallow: /authored-by/
Disallow: /history/
Allow: /action/showPublications
Allow: /action/showXml
Allow: /action/showCoverImage
Allow: /action/showOpenGraphCoverImage
Allow: /action/showGraphicalAbstractImage
Allow: /doi/cover-img
Allow: /action/journalInformation*aimsScope*
Allow: /action/journalInformation*editorialBoard*
Allow: /action/journalInformation*journalMetrics*
Allow: /topic/articlecollection
Allow: /topic/sections
Allow: /action/journalInformation*societyInformation*
Allow: /journals/*/about-this-journal
Allow: /subjects/
Allow: /action/showAxaArticles?journalCode=*
Allow: /.well-known/tdmrep.json
User-agent: facebookexternalhit
User-agent: LinkedInBot
User-agent: Twitterbot
Allow: /
User-agent: GPTBot
Disallow: /
Crawl-delay: 1
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 Intelligencetandfonline.com — via SafeNames Ltd., 20 years, 11 months oldPASS
48 days
August 30, 2026
66 days
Issued by Google Trust Services
20 years, 11 months
Registered August 30, 2005
Not enabled
Protects against DNS spoofing
Unknown
2a06:98c1:3103::6812:277b
SafeNames Ltd.
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- 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