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https://donga.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
80
GRADE
B
FIX
1
REVIEW
5
PASS
3
INFO
0
Probed from Madrid, Spain
302 Found
Checks
9
3 PASS 5 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

B
Redirect Chain
1 redirect(s), 2615 ms total
REVIEW
1 redirect(s), 2615 ms total
Info::
Single redirect
Got: https://donga.com → https://www.donga.com/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://donga.com
Warning::
Redirect overhead: 2615 ms total
Got: 2615 ms

https://donga.com

1124 ms · HTTP/1.0

302

https://www.donga.com/

1491 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://donga.com3021124 msHTTP/1.0BigIP
2https://www.donga.com/2001491 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

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

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

C
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Warning::
HTTP→HTTPS redirect uses 302 instead of 301
Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

200https://www.donga.com/
200https://donga.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

302http://donga.com/ https://www.donga.com/

Use 301 (permanent) instead of 302 (temporary)

B
HTTP Probe Timing
Total 1439 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
319 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
280 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
561 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
1.44 s
Total Time Total request time from DNS lookup through full response.
1.44 s

Connection waterfall

DNS Lookup 319 ms TCP Connect 280 ms TLS Handshake 561 ms Server Processing 280 ms Content Transfer 0 ms
B
TLS Certificate Expiry & Recommendations
205 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

205
days left
0d 30d 60d 90d+

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
A
DNS Records
1 A records, 319 ms lookup
PASS
1 A records, 319 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 210.115.155.100
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns.dongailbo.co.kr, ns0.donga.com
Info::
1 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Warning::
DNS resolution is slow (319 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 319 ms
A210.115.155.100
AAAA
CNAME
NSns.dongailbo.co.kr, ns0.donga.com
MX
0 wmail.donga.com
TXT
SPF v=spf1 ip4:210.115.128.35 ip4:210.115.128.85 ip4:210.115.150.52 ip4:210.115.150....
MS=5DB54DF3B67BAD22F367C3319E358584FDC91BE8
MS=ms68197774
CAALookup not available with standard resolver
Resolved in 319 ms

Multiple A records provide failover if one server goes down.

Why this matters

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.

Why this matters

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.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+
Crawlability
robots.txt present, sitemap with 658 URLs
PASS
robots.txt present, sitemap with 658 URLs
Info::
robots.txt is present
Got: 688 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 658 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 688 B Sitemaps referenced 4 User-agents * Blocking No — crawling allowed
User-agent: *

Allow: /news/Sports/article/

Disallow: /search

Disallow: /news/search

Disallow: /news/View

Disallow: /news/dongaars

Disallow: /NEWS

Disallow: /HUB

Disallow: /VOICE

Disallow: /ISSUE

Disallow: /BIZN

Disallow: /STUDIO

Disallow: /SPORTS

Disallow: /VODA

Disallow: /WEEKLY

Disallow: /WOMAN

Disallow: /SHINDONGA


#DaumWebMasterTool:6af926b3c34377464b5bd427ad530c7c714d0d5950fa49080ae66373d9c6e7cb:xUUuR78FZ7e9iXukGuOVLQ==


Sitemap: https://www.donga.com/sitemap/donga-newsmap.xml

Sitemap: https://image.donga.com/sitemap/donga-sitemap.xml

Sitemap: https://www.donga.com/sitemap/foreign-newsmap.xml

Sitemap: https://image.donga.com/sitemap/foreign-sitemap.xml
A+
Domain Intelligence
donga.com — via Gabia, Inc., 30 years, 6 months old, hosted on KIXS-AS-KR Korea Telecom, KR
PASS
donga.com — via Gabia, Inc., 30 years, 6 months old, hosted on KIXS-AS-KR Korea Telecom, KR
Info::
Domain registered until Mar 27, 2027 (11 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: Gabia, Inc.
Warning::
Registrar lock is NOT enabled
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.
Info::
Hosting: KIXS-AS-KR Korea Telecom, KR
Got: AS4766
Domain expiry

284 days

March 27, 2027

SSL certificate

205 days

Issued by GlobalSign nv-sa

Domain age

30 years, 6 months

Registered March 26, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

KIXS-AS-KR Korea Telecom, KR

ASN AS4766

210.115.155.100

Registrar

Gabia, Inc.

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Gabia, Inc.
Created March 26, 1996 (30 years, 6 months ago)
Expires March 27, 2027 (11 months)
Last Updated January 16, 2026
Name Servers ns.donga.com, ns0.donga.com
DNSSEC Not enabled
Hosting
IP Address 210.115.155.100
ASN AS4766 (KIXS-AS-KR Korea Telecom, KR)
Provider KIXS-AS-KR Korea Telecom, KR
Data source: rdap (0.3s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

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.

Why this matters

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

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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