Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.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
BTLS Certificate Expiry & Recommendations82 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
A+DNS Records2 A records, 32 ms lookupPASS
| A | 172.64.145.113, 104.18.42.143 |
| AAAA | — |
| CNAME | — |
| NS | lee.ns.cloudflare.com, rachel.ns.cloudflare.com |
| MX | — |
| TXT | db06aef7-a407-4291-bbae-999f607cee5f facebook-domain-verification=hao9eb7xwug5ulhfj46f4f7l2ep2yv google-site-verification=qYNvj1OsyU9ujCpcr4fPH4PwwmaecMLbdXsJlh425AI SPF v=spf1 ip4:65.156.0.0/23 include:spf.literatumonline.com ~all |
| 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://acpjournals.org
26 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://acpjournals.org | 403 | 26 ms | HTTP/1.1 | cloudflare |
ACrawlabilityrobots.txt present, sitemap with 0 URLsPASS
An empty sitemap provides no value. Add <url> entries for your pages.
An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.
Learn more ▾ ▴
Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.
Source: Google Search Central / sitemaps.org
Sitemap: https://www.acpjournals.org/sitemap-index-1.txt
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: /author/
Disallow: /doi/metrics/
Disallow: /authored-by/
Disallow: /history/
Allow: /action/showJournal
Allow: /action/showPublications
Allow: /action/showXml
Allow: /action/showTopic
Allow: /action/showBook
Allow: /action/showCoverImage
Allow: /.well-known/tdmrep.json
User-agent: facebookexternalhit
User-agent: LinkedInBot
User-agent: Twitterbot
Allow: /
User-agent: GPTBot
Disallow: /
User-agent: AdsBot-Google
Allow: /
User-agent: AdsBot-Google-Mobile
Allow: /
User-agent: Applebot-Extended
Disallow: /
Crawl-delay: 1
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceacpjournals.org — via Network Solutions, LLC, 6 years, 5 months old, hosted on CloudflarePASS
1282 days
December 18, 2029
82 days
Issued by Google Trust Services
6 years, 5 months
Registered December 18, 2019
Not enabled
Protects against DNS spoofing
Cloudflare
ASN AS13335
172.64.145.113
Network Solutions, 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