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
BCrawlabilityrobots.txt present, sitemap with 0 URLsREVIEW
Search engines may not be able to parse the sitemap. Fix XML validation errors.
An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.
Learn more ▾ ▴
Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.
Source: sitemaps.org / Google Search Central
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
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: /advancedsearch.aspx
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/
Sitemap: https://trs.silverchair.com/data/sitemap/sitemap.xml
BTLS Certificate Expiry & Recommendations45 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, 33 ms lookupPASS
| A | 104.18.12.179, 104.18.13.179 |
| AAAA | — |
| CNAME | — |
| NS | ns-1221.awsdns-24.org, ns-960.awsdns-56.net, ns-510.awsdns-63.com, ns-1628.awsdns-11.co.uk |
| MX | 10 mail01.royalsocietypublishing.org |
| TXT | google-site-verification=vxC6jbmZ6eJmaMNjvKwasok4AKdZkY60VHrHSGj_wUo SPF v=spf1 ip4:65.156.0.0/23 include:spf.literatumonline.com include:_spf.silverchai... |
| 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), 57 ms totalPASS
https://royalsocietypublishing.org
57 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://royalsocietypublishing.org | 403 | 57 ms | HTTP/1.1 | cloudflare |
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceroyalsocietypublishing.org — via Amazon Registrar, Inc., 18 years, 2 months old, hosted on CloudflarePASS
675 days
May 21, 2028
45 days
Issued by Let's Encrypt
18 years, 2 months
Registered May 21, 2008
Not enabled
Protects against DNS spoofing
Cloudflare
ASN AS13335
104.18.12.179
Amazon Registrar, Inc.
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