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
BTLS Certificate Expiry & Recommendations275 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, 39 ms lookupPASS
| A | 2.22.208.82 |
| AAAA | — |
| CNAME | — |
| NS | a7-66.akam.net, a6-66.akam.net, a5-65.akam.net, a14-66.akam.net, a1-205.akam.net, a4-65.akam.net |
| MX | 5 mx1.intuit.iphmx.com 5 mx2.intuit.iphmx.com |
| TXT | onetrust-domain-verification=a014c8e6937e453f8448babef5311dfd MS=ms64719398 google-site-verification=HceFICpk7mLeoOmNAIxQyKx6NMEEjRlNgU_GC7UmaZI google-gws-recovery-domain-verification=48989807 _4u0mlvjxxxpqyv676anx8wkajzdzk0q zscaler-verification-42108621-10312025-7GNw9T facebook-domain-verification=hmwpoaxoffl9lyv7a1jag656uo66wb google-site-verification=6dAIWpnctxIKj5r1bLhn2iGED8AGy8W_17S6scTDbbw google-site-verification=qSv3r3tfEN8dtGaL1jVStrokm_jKImsl4cvgUG_6q5g digicert-domain-verification=_6g0u9nlv0mrvwb42upf06tgvu9gfum0 apple-domain-verification=rtX1pAADNqH2UyA1vjbkylBSL92ZkTBvvFt54v3z5ck google-site-verification=iBzo6FrDJ3rlsGoEUXL_YNHKVreLxzetIZRuCUlnBeQ adobe-idp-site-verification=b462bb17fbdf88e847859454079da73265c27a30a38d2c83f4a6... _72ru7fr8c0ncfmjg71hyedfisw40m4h digicert-domain-verification-api=_l7n57xjtvdexvstchmg2p9g0647df5j atlassian-domain-verification=rOuxrbpoM8X0dyjve2lLYnnHEXBtmxbGzk17YgboFB62K3dXo2... zapier-domain-verification-challenge=7f0c4720-f8f2-4f40-b264-cb21fe731403 docusign=a0dc4d7a-5002-4653-bb4f-959c68aa9074 google-site-verification=WW0kxheERt2YHAEclRL_5DCFawde0CCdmJtXyNXS_7I SPF v=spf1 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 ip4:129.145.74... google-site-verification=ruul5w2E3u_oxPm-3xBtwAPFtTus0sysqVmIxy5frlg apple-domain-verification=VyVmVW02Ds1n6FQa onetrust-domain-verification=39a9942af0b642f1b6d2129f2aeaa1cc smartsheet-site-validation=iJlsJdcpCMM9BUovg1yWWyqVYfZZWDdx google-site-verification=FCp4CIH0-oOMadlYtNFvxRTI9_2zW1WDkXFR7pV8kPg google-site-verification=gYGKtLPycLOsWo5xUlOOGWsvENDmTYIt1X9iE1PZEP8 digicert-verification=zp2grw3qhjdfrzqpyybxtfbpzrk266g7 MS=5D41393E1B1E2A326C6154F96B8D4EEBDC58A667 mandrill_verify.5xzlEj2UVG87cZHpVJCi1A onetrust-domain-verification=c77e00667a61495a933ef5219a1f71db google-site-verification=kjsRysndjNMMbqiWeLDEWuFKQifOKoBTpHJWZhFwr6E |
| 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), 258 ms totalPASS
https://mailchimp.com
220 ms · HTTP/1.1
https://mailchimp.com/es/
38 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://mailchimp.com | 302 | 220 ms | HTTP/1.1 | istio-envoy |
| 2 | https://mailchimp.com/es/ | 200 | 38 ms | HTTP/1.1 | istio-envoy |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
A+Crawlabilityrobots.txt present, sitemap with 4 URLsPASS
# Algolia-Crawler-Verif: 1303ECCCE3636DE4
User-agent: *
Sitemap: https://mailchimp.com/sitemap.xml
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencemailchimp.com — via MarkMonitor Inc., 25 years, 1 months old, hosted on AkamaiPASS
1082 days
June 29, 2029
275 days
Issued by DigiCert Inc
25 years, 1 months
Registered June 29, 2001
Not enabled
Protects against DNS spoofing
Akamai
ASN AS16625
2.22.208.82
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