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 & Recommendations83 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, 4 ms lookupPASS
| A | 104.18.43.124, 172.64.144.132 |
| AAAA | — |
| CNAME | — |
| NS | lee.ns.cloudflare.com, rachel.ns.cloudflare.com |
| MX | 10 mail01.ascopubs.org |
| TXT | facebook-domain-verification=ojcxwd6zsjyj8heccaq3k4g5juqi23 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), 17 ms totalPASS
https://ascopubs.org
17 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://ascopubs.org | 403 | 17 ms | HTTP/1.1 | cloudflare |
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://ascopubs.org/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: /doi/mlt/
Disallow: /topic
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
User-agent: facebookexternalhit
User-agent: LinkedInBot
User-agent: Twitterbot
Allow: /
User-agent: GPTBot
Disallow: /
User-agent: ChatGPT-User
Disallow: /
User-agent: CCBot
Disallow: /
User-agent: Applebot
Disallow: /
User-agent: Applebot-Extended
Disallow: /private/
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 Intelligenceascopubs.org — via Network Solutions, LLC, 19 years, 10 months old, hosted on CloudflarePASS
2274 days
October 3, 2032
83 days
Issued by Google Trust Services
19 years, 10 months
Registered October 3, 2006
Not enabled
Protects against DNS spoofing
Cloudflare
ASN AS13335
172.64.144.132
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