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.
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.
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations195 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
- 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 Records2 A records, 113 ms lookupPASS
| A | 3.93.126.98, 54.80.177.85 |
| AAAA | — |
| CNAME | — |
| NS | ns-1005.awsdns-61.net, ns-1142.awsdns-14.org, ns-1879.awsdns-42.co.uk, ns-285.awsdns-35.com |
| MX | 1 aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com |
| TXT | 0H/0Jf0uNEGWe/WH0DWBCD7RtW6tkTXtG5TUqin05BC+NpjOpUaPudH5sdajhihdxGN35BPGoFMKBtbw... LbNspQfjywgzg7L/o6ZMQC++t9zf81S/1XQ9aiTuUbQ= MS=ms18903539 SFMC-VxvHdvK3stHUQwFOPoWql7eO-Xhub_1-NTim83qn _globalsign-domain-verification=xbDrdpr-FOXsFsLaRwTVZCJpiHAQGzCDeQMNrc1y7W adobe-idp-site-verification=f7866209960982064ccd9149a56c180dd1ebe51f9b96f77b967b... anthropic-domain-verification-2q10hr=bgOZBRUpQYwCBcbzDGbgzhTKr apple-domain-verification=lKGMMLUnzQh7SbS2 atlassian-domain-verification=4AfMdLgd/VhAhAafqWYZrPUAduwkDsap7h2ppjifC6/tqZbZhP... atlassian-domain-verification=U3GHkEnuHnBfOVT7oi3fij3oXporYCkeKio6wo2XlEuglccBZE... c5870331-4e2e-4448-b3f9-e49047294fb4 cursor-domain-verification-dgjh64=8e0S2ij2tcpCAtHE7MrZmJW12 docker-verification=ee48459a-6df0-484d-9b31-327b7de618fe facebook-domain-verification=8364o3qyvtxsor8w9n7na68af3ucd1 google-site-verification=HVkVfFN9HSYOIMUnEtMJ9xHGpuWQH37aHxr9BvT2DnA google-site-verification=eMjoFz1h8QqkkuKwueZTZSKOC908mo5DDw6d25NVxQ0 google-site-verification=r9hXByQR8r2fOs-TWsn7Osu6QuLQUDksIfz7xsI5yk0 knowbe4-site-verification=8a7abda81f3b5027627461fdaf27e3bb mongodb-site-verification=AMZL1pl7Uy7yGfIg5LVL7oLeHQutWN4T smartsheet-site-validation=xii392nVEjXBep-JArqt2Pt_0f2EvmiT SPF v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all work-accounts-domain-verification=ZcDNEqMJGjnZIIaQAwkfiZ8bCCd03q workplace-domain-verification=NUh1WDhetrvgGbveooEujmLHFFqkyn wrike-verification=MTA1NjkxNDo3ZGE2MDY1ZGNkYWQzNjViMGM1N2U0OGMxMjI0NTg3ZGM0NjhiZ... |
| 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), 311 ms totalPASS
https://cars.com
311 ms · HTTP/1.0 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://cars.com | 301 | 311 ms | HTTP/1.0 | BigIP |
A+Domain Intelligencecars.com — via MarkMonitor Inc., 28 years, 7 months old, hosted on AWSPASS
210 days
February 11, 2027
195 days
Issued by GlobalSign nv-sa
28 years, 7 months
Registered February 12, 1998
Not enabled
Protects against DNS spoofing
AWS
ASN AS14618
3.93.126.98
MarkMonitor 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