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https://costdown.org

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
0
REVIEW
9
PASS
8
INFO
0
Probed from Sao Paulo, Brazil
200 OK
Checks
17
8 PASS 9 REVIEW
B
DNSSEC
Unsigned (DNSSEC not deployed)
REVIEW
Unsigned (DNSSEC not deployed)
Info::
DNSSEC is not deployed
The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).
B
CAA Records
No CAA records (any CA may issue certificates)
REVIEW
No CAA records (any CA may issue certificates)
Info::
No CAA records published
Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.
C
Reverse DNS
Action
0/4 IPs match cert SAN
REVIEW
0/4 IPs match cert SAN
Info::
PTR lookup failed for 172.67.199.218: lookup 172.67.199.218: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 104.21.90.104: lookup 104.21.90.104: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2606:4700:3033::ac43:c7da: lookup 2606:4700:3033::ac43:c7da: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2606:4700:3037::6815:5a68: lookup 2606:4700:3037::6815:5a68: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
B
Multi-Resolver DNS Speed
Mean 66ms across 3 resolvers (spread 180ms)
REVIEW
Mean 66ms across 3 resolvers (spread 180ms)
Info::
Cloudflare: 3ms
Got: 3ms via 1.1.1.1:53
Info::
Google: 14ms
Got: 14ms via 8.8.8.8:53
Info::
Quad9: 183ms
Got: 183ms via 9.9.9.9:53
B
URL Variants
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
Info::
HTTP correctly redirects to HTTPS permanently
Got: HTTP 301

www / non-www

200https://www.costdown.org/
200https://costdown.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://costdown.org/ → https://costdown.org/

Consistent

B
HTTP Probe Timing
Total 1167 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
117 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
12 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
926 ms
Total Time Total request time from DNS lookup through full response.
1.17 s

Connection waterfall

DNS Lookup 117 ms TCP Connect 1 ms TLS Handshake 12 ms Server Processing 796 ms Content Transfer 241 ms
B
TLS Certificate Expiry & Recommendations
76 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

76
days left
0d 30d 60d 90d+

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
B
Operational Status Page
No status page link detected
REVIEW
No status page link detected
Info::
No operational status page link detected
Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.
B
Health Check Endpoint
No conventional health endpoint found
REVIEW
No conventional health endpoint found
Info::
No conventional health endpoint found
Health endpoints (/health, /healthz, /status, /ping, /api/health) let uptime monitors, load balancers, and orchestration systems (Kubernetes, ECS, Fly.io) verify the service is alive. Marketing sites and small services often skip them legitimately; flagged as Info, not a failure. Probe results: /api/health: 404, /health: 404, /healthz: 404, /ping: 404, /status: 404.
A
DNS Records
2 A records, 223 ms lookup
PASS
2 A records, 223 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.67.199.218, 104.21.90.104
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3033::ac43:c7da, 2606:4700:3037::6815:5a68
Info::
2 nameserver(s) configured
Got: jack.ns.cloudflare.com, nancy.ns.cloudflare.com
Info::
3 mail exchanger(s) configured
Info::
SPF record present in TXT
Warning::
DNS resolution is slow (223 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 223 ms
A172.67.199.218, 104.21.90.104
AAAA2606:4700:3033::ac43:c7da, 2606:4700:3037::6815:5a68
CNAME—
NSjack.ns.cloudflare.com, nancy.ns.cloudflare.com
MX
23 route3.mx.cloudflare.net
44 route1.mx.cloudflare.net
63 route2.mx.cloudflare.net
TXT
google-site-verification=d67404KMCF8M2SjKmO1Bk28XoyGLJiGdtN-jM-4WPHs
SPF v=spf1 include:_spf.mx.cloudflare.net -all
CAALookup not available with standard resolver
Resolved in 223 ms

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+
Subdomain Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
No CNAME record present
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://costdown.org

https://costdown.org

894 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://costdown.org200894 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (2 ms)
PASS
IPv6 reachable (2 ms)
Info::
IPv6 is configured and reachable at 2606:4700:3033::ac43:c7da, 2606:4700:3037::6815:5a68
Got: 2 ms connect
IPv6 Ready
AAAA Records 2606:4700:3033::ac43:c7da, 2606:4700:3037::6815:5a68 Connection Reachable (2 ms)
A+
Crawlability
robots.txt present, sitemap with 836 URLs
PASS
robots.txt present, sitemap with 836 URLs
Info::
robots.txt is present
Got: 557 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 836 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 557 B Sitemaps referenced 1 User-agents *, Bytespider, Applebot-Extended, CCBot, GPTBot, OAI-SearchBot, Claude-User, Claude-SearchBot, Perplexity-User, Google-Extended, meta-externalagent, ChatGPT-User, ClaudeBot, PerplexityBot, Amazonbot Blocking No — crawling allowed
User-Agent: *
Allow: /

User-Agent: GPTBot
Allow: /

User-Agent: OAI-SearchBot
Allow: /

User-Agent: ChatGPT-User
Allow: /

User-Agent: ClaudeBot
Allow: /

User-Agent: Claude-User
Allow: /

User-Agent: Claude-SearchBot
Allow: /

User-Agent: PerplexityBot
Allow: /

User-Agent: Perplexity-User
Allow: /

User-Agent: Google-Extended
Allow: /

User-Agent: Applebot-Extended
Allow: /

User-Agent: CCBot
Allow: /

User-Agent: Bytespider
Allow: /

User-Agent: Amazonbot
Allow: /

User-Agent: meta-externalagent
Allow: /

Sitemap: https://costdown.org/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 836 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
costdown.org — via Cloudflare, Inc., 13 days old
PASS
costdown.org — via Cloudflare, Inc., 13 days old
Info::
Domain registered until Aug 22, 2027 (11 months remaining)
Info::
Domain is only 13 days old
Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.
Got: Registered Aug 22, 2026
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: Cloudflare, 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.
Domain expiry

344 days

August 22, 2027

SSL certificate

76 days

Issued by Google Trust Services

Domain age

13 days

Registered August 22, 2026

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3033::ac43:c7da

Registrar

Cloudflare, 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
  • Newly registered domain — build backlinks and content to establish SEO trust
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Cloudflare, Inc.
Created August 22, 2026 (13 days ago)
Expires August 22, 2027 (11 months)
Last Updated August 27, 2026
Name Servers jack.ns.cloudflare.com, nancy.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:3033::ac43:c7da
Data source: rdap (0.6s)

Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.

Why this matters

Informational: domain age. Newer domains may have lower trust signals in spam/security filters.

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
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: GRU)
Got: cf-ray: a363d76f8ca21d38-GRU
Info::
CDN cache status: DYNAMIC
Document served via CDN: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: a363d76f8ca21d38-GRU
A+
CDN Cache Observability
Cache state: DYNAMIC
PASS
Cache state: DYNAMIC
Info::
CDN cache state observable via 1 header(s)
Got: cf-cache-status=DYNAMIC
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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