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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
70
GRADE
C
FIX
2
REVIEW
5
PASS
2
INFO
0
Probed from Madrid, Spain
302 Found
Checks
9
2 PASS 5 REVIEW 2 FIX
F
Redirect Chain
Action
3 redirect(s), 1611 ms total
FIX
3 redirect(s), 1611 ms total
Warning::
3 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
HTTP to HTTPS redirect present
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://blog.naver.com
Warning::
Redirect overhead: 1611 ms total
Got: 1611 ms
Info::
Cross-domain redirect detected

https://blog.naver.com

275 ms · HTTP/1.1

302

http://section.blog.naver.com

689 ms · HTTP/1.1

302

https://section.blog.naver.com/Index.nhn...

317 ms · HTTP/1.1

302

https://section.blog.naver.com/BlogHome....

329 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://blog.naver.com302275 msHTTP/1.1nfront
2http://section.blog.naver.com302689 msHTTP/1.1nfront
3https://section.blog.naver.com/Index.nhn...302317 msHTTP/1.1nfront
4https://section.blog.naver.com/BlogHome....200329 msHTTP/1.1nfront

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

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

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
DNS Records
1 A records, 33 ms lookup
REVIEW
1 A records, 33 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 2.17.153.80
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: blog.naver.com.nheos.com
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 33 ms
Got: 33 ms
A2.17.153.80
AAAA
CNAMEblog.naver.com.nheos.com
NS
MX
TXT
CAALookup not available with standard resolver
Resolved in 33 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

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

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

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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

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

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 1623 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 1623 B Sitemaps referenced 0 User-agents ClaudeBot, Claude-SearchBot, OAI-SearchBot, Google-Extended, meta-externalagent, Applebot-Extended, CCBot, *, Yeti, GPTBot, PerplexityBot Blocking No — crawling allowed
User-agent: Yeti

Disallow: /


# BOT ACCESS FOR THE PURPOSES OF AI TRAINING AND RETRIEVAL-AUGMENTED GENERATION (RAG) IS STRICTLY PROHIBITED.

User-agent: GPTBot

Disallow: /

User-agent: OAI-SearchBot

Disallow: /

User-agent: PerplexityBot

Disallow: /

User-agent: Google-Extended

Disallow: /

User-agent: ClaudeBot

Disallow: /

User-agent: Claude-SearchBot

Disallow: /

User-agent: meta-externalagent

Disallow: /

User-agent: Applebot-Extended

Disallow: /

User-agent: CCBot

Disallow: /


User-agent: *

Disallow: /PostList.nhn

Disallow: /PostPrint.nhn

Disallow: /NBlogPostPreview.nhn

Disallow: /NBlogHidden.nhn

Disallow: /BlogInfo.nhn

Disallow: /PostExportDoc.nhn

Disallow: /PostPreview.nhn

Disallow: /NVisitor4Ajax.nhn

Disallow: /NVisitorgp4Ajax.nhn

Disallow: /NBuddyList.nhn

Disallow: /WidgetListAsync.nhn

Disallow: /socialapp/SocialAppAppBoxMyAppListAsync.nhn

Disallow: /PostList.naver

Disallow: /PostPrint.naver

Disallow: /NBlogPostPreview.naver

Disallow: /NBlogHidden.naver

Disallow: /BlogInfo.naver

Disallow: /PostExportDoc.naver

Disallow: /PostPreview.naver

Disallow: /NVisitor4Ajax.naver

Disallow: /NVisitorgp4Ajax.naver

Disallow: /NBuddyList.naver

Disallow: /WidgetListAsync.naver

Disallow: /socialapp/SocialAppAppBoxMyAppListAsync.naver

Disallow: /buddy/

Disallow: /export/

Disallow: /common/

Disallow: /post/

Disallow: /npost/

Disallow: /main/

Disallow: /guestbook/

Disallow: intro.nhn

Disallow: history.nhn

Disallow: comment.nhn

Disallow: intro.naver

Disallow: history.naver

Disallow: comment.naver

Disallow: /socialapp/

Disallow: /upload/

Disallow: /connect/
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 302 Expected: 301 redirect to HTTPS

www / non-www

https://www.blog.naver.com/
200https://blog.naver.com/

HTTP → HTTPS

302http://blog.naver.com/ http://section.blog.naver.com

HTTP version does not redirect to HTTPS

C
TLS Certificate Expiry & Recommendations
Action
28 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

28
days left
0d 30d 60d 90d+
Renew soon — under 30 days remaining

Recommended actions

  • Renew certificate — 28 days remaining
  • 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+
Domain Intelligence
naver.com — via Gabia, Inc., 29 years old, hosted on NHN-AS-KR NAVER Cloud Corp., KR
PASS
naver.com — via Gabia, Inc., 29 years old, hosted on NHN-AS-KR NAVER Cloud Corp., KR
Info::
Domain registered until Sep 11, 2032 (6 years, 5 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: NHN-AS-KR NAVER Cloud Corp., KR
Got: AS23576
Domain expiry

2249 days

September 11, 2032

SSL certificate

28 days

Issued by DigiCert Inc

Domain age

29 years

Registered September 12, 1997

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

NHN-AS-KR NAVER Cloud Corp., KR

ASN AS23576

223.130.200.219

Registrar

Gabia, Inc.

Unlocked 3 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the TLS certificate or verify auto-renewal is working
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Gabia, Inc.
Created September 12, 1997 (29 years ago)
Expires September 11, 2032 (6 years, 5 months)
Last Updated October 22, 2025
Name Servers ns1.naver.com, ns2.naver.com, ns3.naver.com
DNSSEC Not enabled
Hosting
IP Address 223.130.200.219
ASN AS23576 (NHN-AS-KR NAVER Cloud Corp., KR)
Provider NHN-AS-KR NAVER Cloud Corp., KR
Data source: rdap (0.4s)

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

A
HTTP Probe Timing
Total 581 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
305 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
0 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
3 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
581 ms
Total Time Total request time from DNS lookup through full response.
581 ms

Connection waterfall

DNS Lookup 305 ms TCP Connect 0 ms TLS Handshake 3 ms Server Processing 273 ms Content Transfer 0 ms
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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