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
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations74 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
- 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
ADNS Records1 A records, 606 ms lookupPASS
| A | 3.35.113.248 |
| AAAA | — |
| CNAME | — |
| NS | ns-1288.awsdns-33.org, ns-1618.awsdns-10.co.uk, ns-343.awsdns-42.com, ns-542.awsdns-03.net |
| MX | 0 spam.chosun.com |
| TXT | _acme-challenge.sandbox.chosun.com.=WQZ-txQ8JpD8amqBbabzVkHdqj_f9xJ57ixWAjMOiOw google-site-verification= eRbXLmOpGthNZDDPjkR584Dnba5E9H P4CCIfk-ey6PM google-site-verification=1k7vOpZhmuudYQLLT-4boknGOJ87GkhBtDiSkgqr8vU google-site-verification=2flbaA0RZAndL2uhVra33yiJJD-fIneMDllGeJBNuO8 google-site-verification=57Oi1VCXiWQ_144wCOR7Xc-0I9xtynl6jopj-vbLES4 google-site-verification=6VJaEV0OAIti9MmzT9RcfL1PhmY3BXpSKTIS5x8qIEE google-site-verification=C3var7laLCc8bcFSmkPcYxgAGkNEkxDhZStOaX3nFHk google-site-verification=Z-CjAI7VsDgHwqztKJwqZfGtOoexgXQWKLETlGT_Vco google-site-verification=kZVDofDPASRKM7DbhS7Wl64g0GDt1Wwi5SKJceCBM0o google-site-verification=oNvCVn8cu479HpwS7Ane21_IkgXU4iCCDWe5wT0D5uU google-site-verification=odEDnhrGYmtveLUXyMKEJuIbM_ZF_X14BYPPI0YgBiY include: _acme-challenge.sandbox.chosun.com include:_spf.google.com ~all include:_spfa.chosun.com include:_spfb.chosun.com include:_spfc.chosun.com inclu... jsEW-xs_rsVLpUn_295TkakoMiAmU7NRCHly_yYy2R4 SPF v=spf1 ip4:43.202.28.16 ip4:52.78.179.24 ip4:112.175.255.152 ip4:54.180.75.126 i... |
| 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), 657 ms totalPASS
https://chosun.com
374 ms · HTTP/1.1
https://www.chosun.com/
283 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://chosun.com | 301 | 374 ms | HTTP/1.1 | Microsoft-IIS/8.5 |
| 2 | https://www.chosun.com/ | 200 | 283 ms | HTTP/1.1 | openresty |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 100 URLsPASS
User-agent: *
Disallow: /main/bosi*
Disallow: /test*
Disallow: /search
Disallow: /nsearch
Disallow: /earlybird
Disallow: /economy/realty/
User-agent: GPTBot
Disallow: /
User-agent: DeepSeekBot
Disallow: /
Sitemap: https://www.chosun.com/arc/outboundfeeds/news-sitemap/?outputType=xml
Sitemap: https://www.chosun.com/arc/outboundfeeds/sitemap/section/index/?outputType=xml
- https://www.chosun.com/english/kpop-culture-en/2026/04/16/3KB6XE6UBZHMBJHOHWW35OE7AI/
- https://www.chosun.com/resizer/v2/GI4DKMRQGQ2GEMZZMQZGIM3EHE.jpg?auth=7d3d521afb254f91dc0f977f86db8e0e862520c014751fffb21554d2cdd6285b&smart=true&width=600&height=500
- https://www.chosun.com/english/kpop-culture-en/2026/04/16/VZ6NPE6EO5HSLHSBO55UMA3L7A/
- https://www.chosun.com/resizer/v2/GY3TKOBZMNSGKN3EGA2TAYLDMU.jpg?auth=a1f9cb400e4e2d6c9be7e7a71b4b654c1fc8eb31f71ecbee895a3756061ed500&smart=true&width=530&height=662
- https://www.chosun.com/english/sports-en/2026/04/16/R33BGQSPJVA6LKB3ZRLCFC3Z2Y/
A+Domain Intelligencechosun.com — via Whois Corp., 30 years, 11 months old, hosted on AWSPASS
115 days
October 9, 2026
74 days
Issued by DigiCert Inc
30 years, 11 months
Registered October 10, 1995
Not enabled
Protects against DNS spoofing
AWS
ASN AS16509
3.35.113.248
Whois Corp.
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