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.
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
HTTP → HTTPS
HTTP version does not redirect to HTTPS
BTLS Certificate Expiry & Recommendations151 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 & DeliveryAkamaiREVIEW
A+DNS Records1 A records, 19 ms lookupPASS
| A | 23.201.175.47 |
| AAAA | — |
| CNAME | — |
| NS | a28-66.akam.net, a1-79.akam.net, a11-64.akam.net, a24-65.akam.net, a3-67.akam.net, a8-64.akam.net |
| MX | 10 lenovo-com.mail.protection.outlook.com |
| TXT | ece42d7743c84d6889abda7011fe6f53 x1n4n7dfpt5hlqlv6vpbtg2czj5bk2y8 figma-domain-verification=77471062f3395d7cb96639684e519d0b3d276830c64ca7e17ea13b... google-site-verification=1dLAd9aAmT5IZx0wSSkxrD-Fk3izPYLC3Hw_nCQ56sw qctqpsq058s3t12m0rjf2jxw8jnvn0zr Visit www.lenovo.com/think for information about Lenovo products and services +mW6gkHobmAcjibjfpJSLGKu+Cgfmz8XWkYduBur1wMdL8m2qRi2aBmAnCrHIkdhi08V8zZiyeUATg7W... Dynatrace-site-verification=9bffa29b-0dbd-4e8f-8c8c-b28fca3b1bdf__49s5b44hnes32j... _globalsign-domain-verification=4qaYYFkDr3zY8xFnX817RHQdbwKtr7S6GWVF9HLJ3P qh7hdmqm4lzs85p704d6wsybgrpsly0j adobe-idp-site-verification=5540c96206f5fe2df921a6c596ea9fb3d7e418d3eddb598c2993... duo_sso_verification=2eFmztpfk73LXpFC92aOkVdh4qWYBJ169vmf2WqC2omGJBXPVugwvp3gTFj... _globalsign-domain-verification=feXxUwi7bGccktj7bI7l7OYmFCm_x8ogmN1-U4Hu-T atlassian-domain-verification=lBI3riiS/hlfifAaegKM2zDr7vf//HR7mVq7kfQbtMrynu8eQK... google-site-verification=KT4YATm6NeQqaD0WLCJtFOjb0gYXhbzUekUM9Rm-fb8 a82c74b37aa84e7c8580f0e32f4d795d google-site-verification=hxNSoF46anzjUtyFgpRVpzshTkYClFBJ7OAT3Dz6440 google-site-verification=vyPsFusgDLeWzvnapRyBbiva5dXJ1JIJjcNbGuO52-k google-site-verification=247PPmmalrNARHoE2rmOJ3YQygtMquQwLpM_LzVXsFg 4b60110d90a0ba16827618f3165cf720c5458664c9392ea157363087784e0292 fastly-domain-delegation-Gg2T0SlTwT-2021-03-09 google-site-verification=HESboqU3DntBTT9PbwXRvCBnD3atK7HWgIcv3TJcllw smartsheet-site-validation=rRKFFSIrRIhcJ7s3nfiTgTC_jH46Dlu_ google-gws-recovery-domain-verification=53030486 openai-domain-verification=dv-w6UANk0E74dbpJI3mTMHPfxP airtable-verification=1d5415310fbcf1fdc72c0b175208089a _dnsauth=4hlzyrmrk0hdkk4c96qw745ll5h58x35 MS=ms38130575 google-site-verification=nGgukcp60rC-gFxMOJw1NHH0B4VnSchRrlfWV-He_tE google-site-verification=VxW_e6r_Ka7A518qfX2MmIMHGnkpGbnACsjSxKFCBw0 google-site-verification=sHIlSlj0U6UnCDkfHp1AolWgVEvDjWvc0TR4KaysD2c duo_sso_verification=sKtyF9pQMvjVPX6vq4nzV00r7qKNkEVAkkb0Tlx1om1ZqroOG1eZEexVxJr... _0nv5veu70xwpobopaobpzyaqo6i9iv8 63posrsg6o3q95dtuc80da228n SPF v=spf1 include:spf.lenovo.com include:vendorspf.lenovo.com ~all facebook-domain-verification=1r2am7c2bhzrxpqyt0mda0djoquqsi |
| 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), 13 ms totalPASS
https://lenovo.com
13 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://lenovo.com | 301 | 13 ms | HTTP/1.1 | AkamaiGHost |
A+Domain Intelligencelenovo.com — via MarkMonitor Inc., 23 years, 11 months old, hosted on AkamaiPASS
82 days
September 6, 2026
151 days
Issued by DigiCert Inc
23 years, 11 months
Registered September 6, 2002
Not enabled
Protects against DNS spoofing
Akamai
ASN AS16625
23.201.175.47
MarkMonitor Inc.
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
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