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
BCrawlabilityno robots.txt, no sitemapREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
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
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
No sitemap found
Adding a sitemap helps search engines discover your pages.
CTLS Certificate Expiry & RecommendationsAction20 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Renew certificate — 20 days remaining
- 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
A+DNS Records4 A records, 2 ms lookupPASS
| A | 151.101.65.91, 151.101.1.91, 151.101.193.91, 151.101.129.91 |
| AAAA | — |
| CNAME | — |
| NS | ns-1767.awsdns-28.co.uk, ns-47.awsdns-05.com, ns-1163.awsdns-17.org, ns-604.awsdns-11.net |
| MX | 10 smtp.google.com |
| TXT | google-site-verification=tbzf9IDMO5HZhEbN1KJRHGibEaNSc7K3iLb9npVzeyM google-site-verification=8Wr1Tj3E1LXzKgnUsKdw327kU61WVETiOL1MzDPjcJY MS=ms44102608 google-site-verification=n6lIuLvvH0NGV8Iw0ChO7HhteIDvX6ua88x9vQgb73A atlassian-domain-verification=w2N0fg0r/RRZCQ7UgNfpKKFXJH1kvCtLacvj/HzML7VZYyhEDT... _o1tvyo0ny2o26is5kvf3id9sm3boinx datadome-domain-verify=LtwSY8f9UsuWkflYriVEN5xJW7jb1OGB SPF v=spf1 include:_spf.tripadvisor.com include:amazonses.com include:mktomail.com i... perplexity-ai-domain-verification-w8b83e=JnXnWPWhOnlCA796S1QbnXtPw facebook-domain-verification=23ac8apxyt8ivq3rhi55lamrrk061n google-site-verification=bF_EKOCH0CZXfqFkPrhE9xr5JZx4OowLwBdqPsV9HZQ globalsign-domain-verification=3B-TQ8Y-5z1xF00CEQ3ZvrIR1VspPn7dyAno-wqZv- yandex-verification: 238924f7875846f9 google-site-verification=cNyo6d8r5dF5SjCn90JtyDn224TreGw3EiF8vTHMruQ BC99FcKfYn6MaOBhqIca7w MS=6CE5940CCAB23124331A1CDA1EB5188E0B4352DC miro-verification=6ff1de40e337f458d05086183318e55305c99fe1 |
| 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), 84 ms totalPASS
https://viator.com
4 ms · HTTP/1.1
https://www.viator.com/
80 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://viator.com | 308 | 4 ms | HTTP/1.1 | Varnish |
| 2 | https://www.viator.com/ | 403 | 80 ms | HTTP/1.1 | DataDome |
See the visual redirect chain in the HTTP Probe tab →
AURL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
A+Domain Intelligenceviator.com — via CSC Corporate Domains, Inc., 27 years, 7 months old, hosted on FastlyPASS
182 days
January 17, 2027
20 days
Issued by Certainly
27 years, 7 months
Registered January 17, 1999
Not enabled
Protects against DNS spoofing
Fastly
ASN AS54113
151.101.1.91
CSC Corporate Domains, Inc.
Expiry timeline
Recommended actions
- Renew the TLS certificate or verify auto-renewal is working
- 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