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
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations268 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 & DeliveryGoogle Cloud CDNREVIEW
ADNS Records1 A records, 327 ms lookupPASS
| A | 34.110.144.106 |
| AAAA | — |
| CNAME | — |
| NS | dns3.pchome.com.tw, dns2.pchome.com.tw, dns.pchome.com.tw |
| MX | 10 ecfscop.epaper.com.tw 30 mx.pchome.com.tw 40 mx2.pchome.com.tw |
| TXT | google-site-verification=8RUygfarNwr9jZ9vUyf1wMZNOtP9kuqnNVgG-9apHJA _bu40c3tw03luhbap5cerwndn66hmdmo _qzx4qfc3ecadj3is79kjiyafdw8dg8m google-site-verification=lZCWvMZC6h8f6W2L8xrSDI2wG5r9_8vcgCw_7OWut34 SPF v=spf1 ip4:220.130.120.0/24 ip4:210.61.128.0/24 ip4:219.87.131.229 ip4:107.167.1... google-site-verification=csyv-zB834orOs18H_iuaETweJo4p7FPzmW7IwD-SRY |
| 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.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
ARedirect Chain1 redirect(s), 976 ms totalPASS
https://pchome.com.tw
338 ms · HTTP/1.1
https://www.pchome.com.tw/
638 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://pchome.com.tw | 301 | 338 ms | HTTP/1.1 | pchome www daemon |
| 2 | https://www.pchome.com.tw/ | 200 | 638 ms | HTTP/1.1 | pchome www daemon |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 6 URLsPASS
User-agent: *
Allow: /
Sitemap: https://www.pchome.com.tw/sitemap.xml
A+Domain Intelligencepchome.com.tw — via PCHOME, hosted on Google CloudPASS
Unknown
268 days
Issued by DigiCert Inc
Unknown
Status unknown
Protects against DNS spoofing
Google Cloud
ASN AS396982
34.110.144.106
PCHOME
Expiry timeline
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.
Source: ICANN / domain-security best practice