Infrastructure
· 17 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.
BDNSSECUnsigned (DNSSEC not deployed)REVIEW
BCAA RecordsNo CAA records (any CA may issue certificates)REVIEW
BReverse DNS0/1 IPs match cert SANREVIEW
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 & Recommendations42 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- 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
BCDN Cache ObservabilityNo CDN cache-status headers in the responseREVIEW
BOperational Status PageNo status page link detectedREVIEW
BHealth Check EndpointNo conventional health endpoint foundREVIEW
ADNS Records1 A records, 35 ms lookupPASS
| A | 91.197.230.202 |
| AAAA | — |
| CNAME | activatedigital.co.uk |
| NS | ns4.activate-host-1.co.uk, ns3.activate-host-1.co.uk |
| MX | 0 activatedigital-co-uk.mail.protection.outlook.com |
| TXT | SPF v=spf1 ip4:91.197.230.202 +a +mx +ip4:23.235.206.248 +include:spf.protection.out... google-site-verification=p5WILDbEIlER2d2QdRlQbsJdLhllvR0NCy-Vc3XF5c4 google-site-verification=erAtniYOx35652jNaMkDGu5pRvgYpa6E95N4FxNCUT0 |
| 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
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.
Learn more ▾ ▴
RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.
Source: RFC 1034
A+Subdomain TakeoverNo subdomain takeover risk detectedPASS
AMulti-Resolver DNS SpeedMean 58ms across 3 resolvers (spread 70ms)PASS
A+Redirect ChainNo redirects — direct accessPASS
https://www.activatedigital.co.uk
73 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://www.activatedigital.co.uk | 200 | 73 ms | HTTP/1.1 |
A+Crawlabilityrobots.txt present, sitemap with 5 URLsPASS
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:
Sitemap: https://www.activatedigital.co.uk/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: www
HTTP → HTTPS
Consistent
A+Domain Intelligenceactivatedigital.co.uk — via 123-Reg Limited t/a 123-reg [Tag = 123-REG], 9 years, 2 months old, hosted on KUALO-AS, GBPASS
707 days
April 21, 2028
42 days
Issued by Let's Encrypt
9 years, 2 months
Registered April 21, 2017
Status unknown
Protects against DNS spoofing
KUALO-AS, GB
ASN AS204436
91.197.230.202
123-Reg Limited t/a 123-reg [Tag = 123-REG]
Expiry timeline
Recommended actions
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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