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https://portfolio.nabdz.com

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
2
REVIEW
10
PASS
5
INFO
0
Probed from Santa Clara, United States
200 OK
Checks
17
5 PASS 10 REVIEW 2 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

200https://www.portfolio.nabdz.com/
200https://portfolio.nabdz.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

200http://portfolio.nabdz.com/

HTTP version does not redirect to HTTPS

D
CDN & Delivery
Action
No CDN (document or assets)
FIX
No CDN (document or assets)
Warning::
No CDN (document or assets)
Neither the HTML document nor the page's subresources are served through an edge network. A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
Got: document origin: Hetzner
No CDN (document or assets)
Document origin Hetzner

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

B
DNS Records
1 A records, 364 ms lookup
REVIEW
1 A records, 364 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 157.90.66.113
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
SPF record present in TXT
Warning::
DNS resolution is slow (364 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 364 ms
A157.90.66.113
AAAA—
CNAME—
NS—
MX—
TXT
SPF v=spf1 +a +mx +ip4:157.90.66.113 ~all
CAALookup not available with standard resolver
Resolved in 364 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

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

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.
B
Reverse DNS
0/1 IPs match cert SAN
REVIEW
0/1 IPs match cert SAN
Info::
PTR for 157.90.66.113 does not match any cert SAN: oort-shared.dzsecurity.net
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
B
Multi-Resolver DNS Speed
Mean 178ms across 3 resolvers (spread 12ms)
REVIEW
Mean 178ms across 3 resolvers (spread 12ms)
Info::
Quad9: 171ms
Got: 171ms via 9.9.9.9:53
Info::
Cloudflare: 181ms
Got: 181ms via 1.1.1.1:53
Info::
Google: 183ms
Got: 183ms via 8.8.8.8:53
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
HTTP Probe Timing
Total 819 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
352 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
155 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
157 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
819 ms
Total Time Total request time from DNS lookup through full response.
820 ms

Connection waterfall

DNS Lookup 352 ms TCP Connect 155 ms TLS Handshake 157 ms Server Processing 156 ms Content Transfer 0 ms
B
TLS Certificate Expiry & Recommendations
87 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

87
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • 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
CDN Cache Observability
No CDN cache-status headers in the response
REVIEW
No CDN cache-status headers in the response
Info::
No CDN cache-status headers in the response
Without an X-Cache / CF-Cache-Status / X-Vercel-Cache / Age header, you can't tell from outside whether a request hit the cache or went to origin. Operationally important: enables debugging stale-content reports and verifying cache rules. Most managed CDN platforms emit at least one of these by default; absence often means the platform's diagnostic headers are stripped at an upstream proxy.
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.
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://portfolio.nabdz.com

https://portfolio.nabdz.com

834 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://portfolio.nabdz.com200834 msHTTP/1.1DZ-HTTP
A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 433 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 433 B Sitemaps referenced 1 User-agents *, Googlebot, Googlebot-Image Blocking No — crawling allowed
# Robots.txt for Mial Zakaria Portfolio
# Optimized for Googlebot and modern search engine indexing

User-agent: *
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /api/

User-agent: Googlebot
Allow: /
Disallow: /admin
Disallow: /admin/
Disallow: /api/

User-agent: Googlebot-Image
Allow: /images/
Allow: /favicon.svg
Allow: /favicon.png

# Sitemap location for Google Search Console
Sitemap: https://zakaria.design/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 1 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
nabdz.com — via Realtime Register B.V., 1 months old, hosted on Hetzner
PASS
nabdz.com — via Realtime Register B.V., 1 months old, hosted on Hetzner
Info::
Domain registered until Aug 14, 2027 (10 months remaining)
Info::
Domain is only 1 months 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 14, 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: Realtime Register B.V.
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: Hetzner
Got: AS24940
Domain expiry

320 days

August 14, 2027

SSL certificate

87 days

Issued by Let's Encrypt

Domain age

1 months

Registered August 14, 2026

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Hetzner

ASN AS24940

157.90.66.113

Registrar

Realtime Register B.V.

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 Realtime Register B.V.
Created August 14, 2026 (1 months ago)
Expires August 14, 2027 (10 months)
Last Updated August 14, 2026
Name Servers dns2-r.dzsecurity.net, oort-shared.dzsecurity.net
DNSSEC Not enabled
Hosting
IP Address 157.90.66.113
ASN AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
Provider Hetzner
Data source: rdap (0.3s)

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+
Health Check Endpoint
Health endpoint at https://portfolio.nabdz.com/health (HTTP 200)
PASS
Health endpoint at https://portfolio.nabdz.com/health (HTTP 200)
Info::
Public health endpoint at https://portfolio.nabdz.com/health
Got: https://portfolio.nabdz.com/health
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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