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.
BTLS Certificate Expiry & Recommendations301 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- 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
A+DNS Records1 A records, 59 ms lookupPASS
| A | 95.101.224.250 |
| AAAA | — |
| CNAME | — |
| NS | eur1.akam.net, asia3.akam.net, usc2.akam.net, ns1-118.akam.net, use1.akam.net, ns1-119.akam.net, usw2.akam.net, eur2.akam.net |
| MX | 10 mxa-002a6b01.gslb.pphosted.com 10 mxb-002a6b01.gslb.pphosted.com |
| TXT | Dynatrace-site-verification=882011e0-9bd0-40d2-822f-f85f661d2095__bbfqnfh72ema7g... d365mktkey=6orxxh8leit5lzxd0abqnuuqe DlUfs9zx61nM1yUbnSP+ZzoX8CvEbKiZw6FRCqveTF8fDYmLIOR2LfzMYaXuit+sLpBYYV4QrRRFoUSV... atlassian-domain-verification=TtUwVlR0K3KZx5O4wjw626rEZ0jNSaWcym1iHnu3MI3N72lPEm... v=verifydomain MS=ms22146670 d365mktkey=2xfbovrpbth5b74ebygf1lnoq SPF v=spf1 ip4:198.22.123.0/24 ip4:168.94.230.0/24 ip4:198.22.122.4 ip4:198.22.122.6... d365mktkey=2ud6jfzvcdaomybdz7yvh8pwx adobe-idp-site-verification=525758772c073f6d5fdcd1854e6caf8bd27517827a81eafb9c04... google-site-verification=s1KAsSED_OW5FMoqEkTv7d5Vl6IjwQbhNFAkBqtykiQ mk-org-sso-465501ed-efb7-4bdd-a703-dc485ceab414 d365mktkey=4aspdiy55hf9qe6u9i7kg67n1 _globalsign-domain-verification=c17wKbxTHRlX9guWhH5pvY8jYFvxnFjwQSZ1H2U6qo shopify-verification-code=D2rnbVaTP8FoOEL9qmvldwvq6sLwMX _globalsign-domain-verification=-Dnz9-l2YuDUGF6pkxiEAV2dZD8vCAw1vjyXgf4X5f _globalsign-domain-verification=FPaCAb-qc1XQOp3g21zvMhYe5Kqf5_oFrOTNv2bvdP docker-verification=6e02b058-6a9b-4bd6-b2ff-19d7b53ec244 onetrust-domain-verification=b709621cb21a441a9906ac5fe67acf4f bestbuy.com globalsign-domain-verification=eypMAkwo9EOFdpks_S48knXiSq036prCa_TIc0JYYR d365mktkey=2qemjncqsww30ft64gp4gyg7g _globalsign-domain-verification=p9Qai1DIi4fFkvfsen_nMkaGokY-5QSLW1qyHhWxVF _globalsign-domain-verification=zohml7OMpOYBgZSep8H4TwrXwEEyxdtmxOmjWh0Dvb Dynatrace-site-verification=7ddbc628-a14e-4777-9382-1c465da01cbe__cerg0381k2nnur... docusign=c614af81-8967-4e75-837d-cecfdcd2c879 confluent-verification=c6f05e07-472d-4c33-85a6-8fbaf2c089a7 _wrigrwh3deyxponfw7cjri8usbysbwu _globalsign-domain-verification=WlIRFk9I6Bf84ZXoznfQPiEFxSqvhCwi_u5ZK-dZkM liveramp-site-verification=BCRY5T_vpgZw0uDfS90iCAyU1c5pqGNVx5l2PaDnXH8 _globalsign-domain-verification=kOdr8YXX373IW1gr_Of8-4bZONLkNzH_mTPCWGQ-sW Dynatrace-site-verification=d39123ba-6007-4678-9099-bab300e4cc4d__b1g36mt3t36i7o... docusign=c36307b9-2820-4415-92d1-ca4faea5aac3 |
| 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.
A+Redirect Chain0 redirect(s), 64 ms totalPASS
https://bestbuy.com
64 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://bestbuy.com | 301 | 64 ms | HTTP/1.1 |
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencebestbuy.com — via MarkMonitor Inc., 32 years, 7 months old, hosted on AkamaiPASS
629 days
March 4, 2028
301 days
Issued by DigiCert Inc
32 years, 7 months
Registered March 3, 1994
Not enabled
Protects against DNS spoofing
Akamai
ASN AS16625
95.101.224.250
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