Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
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.
BTLS Certificate Expiry & Recommendations77 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
A+DNS Records1 A records, 78 ms lookupPASS
| A | 2.16.39.130 |
| AAAA | 2a02:26f0:e0:4bc::2361, 2a02:26f0:e0:4ab::2361 |
| CNAME | — |
| NS | a3-66.akam.net, a1-32.akam.net, a20-64.akam.net, a11-67.akam.net, a18-66.akam.net, a2-64.akam.net |
| MX | 10 aspmx.l.google.com 20 alt2.aspmx.l.google.com 20 alt1.aspmx.l.google.com 30 aspmx3.googlemail.com 30 aspmx2.googlemail.com |
| TXT | google-site-verification=k3q-KJxrP8qu0xsH2YH56JNzjt3U8uRH5QtsBDrTE4U _globalsign-domain-verification=KUVkWrTXATb8IZui5dqoh7JPjKePTjQDpt9xtPADDo tiktok-developers-site-verification=gx4CnlEMeEnwFbIR6pEV08YorWofe9Zb vbQYjqTXH24GFmb2LQXodGvAVVENmumxJPdGI9w-9ic _globalsign-domain-verification=yykX0BEfZyNaTQIOQm-yPH9zT0bzt7ugvs4O3pj0Iy google-site-verification=pIgohE4mIO2NlhSaDINin4sWCJdShujyOFUyYVpcNPU apple-domain-verification=HZVdu9RLbXK8AolR google-site-verification=lC6uM3Dtwmja0lUuEcedH7cb4kJzlXlSfpTTgAhnXW8 SPF v=spf1 include:_s00609289.autospf.email ~all MS=ms36611250 facebook-domain-verification=gjz6w2bqe6zw8h0dbtsf8r5vd6lgs6 google-site-verification=t2sM811k9fxaLg9klWJxaaC5_tH0f7qc01jQBu83Fc0 89vy5y5ryczpb8n0dhl2m80qxqsklcr3 facebook-domain-verification=46k4zco5a6a3a08tdjbz0tg mixpanel-domain-verify=2a678457-39c5-49c8-b98f-a923ced613d1 google-site-verification=pPCcb85Lj0Mg3NZmg6B8C3TgiwlSvPgLU4I6gpsvbCg pardot1014932=c4680daba93844fd27aea92930ccc2db0cf4890e119f3a8cdc018ecca85966fa 1password-site-verification=VW5EZBXW5BDGXP3A2AYEDTJGOA google-site-verification=wc3BSA09dv0Mb6svfUZnKQFK4WlOgLhFYzBWqMR81pM gv108l1vcy22gvqh9nct1jp8913h9ss3 google-site-verification=K-QFn2Kp5KKdY2ya5hGppYYs3PahzgYEvZ7tM_QFavw |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
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), 60 ms totalPASS
https://theknot.com
11 ms · HTTP/1.1
https://www.theknot.com/
48 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://theknot.com | 301 | 11 ms | HTTP/1.1 | |
| 2 | https://www.theknot.com/ | 403 | 48 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (0 ms)PASS
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
ADomain Intelligencetheknot.com — via GoDaddy.com, LLC, 30 years, 3 months oldPASS
8 days
June 24, 2026
77 days
Issued by DigiCert Inc
30 years, 3 months
Registered June 25, 1996
Not enabled
Protects against DNS spoofing
Unknown
2a02:26f0:e0:4ab::2361
GoDaddy.com, LLC
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
Consider enabling auto-renewal to prevent accidental expiration.
Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.
Source: ICANN renewal policy
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