Skip to content
https://immocastlepromotion.dz

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
10
PASS
6
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
6 PASS 10 REVIEW 1 FIX
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.
No CDN (document or assets)

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

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 197.140.11.7 does not match any cert SAN: whm1.icosnethosting.com
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 143ms across 3 resolvers (spread 90ms)
REVIEW
Mean 143ms across 3 resolvers (spread 90ms)
Info::
Google: 110ms
Got: 110ms via 8.8.8.8:53
Info::
Quad9: 121ms
Got: 121ms via 9.9.9.9:53
Info::
Cloudflare: 200ms
Got: 200ms via 1.1.1.1:53
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
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.immocastlepromotion.dz/
200https://immocastlepromotion.dz/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://immocastlepromotion.dz/ → https://immocastlepromotion.dz/

Consistent

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.
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
1 A records, 115 ms lookup
PASS
1 A records, 115 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 197.140.11.7
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: whm1.icosnethosting.com, dns4.icosnethosting.com
Info::
1 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 115 ms
Got: 115 ms
A197.140.11.7
AAAA—
CNAME—
NSwhm1.icosnethosting.com, dns4.icosnethosting.com
MX
0 immocastlepromotion.dz
TXT
google-site-verification=F8gzhOqd75gJ_rxvymLLtfOq4vxNG0bOdW9s7lQn0jw
SPF v=spf1 +a +mx +ip4:197.140.11.7 ~all
CAALookup not available with standard resolver
Resolved in 115 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+
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://immocastlepromotion.dz

https://immocastlepromotion.dz

302 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://immocastlepromotion.dz200302 msHTTP/1.1
A
Crawlability
robots.txt present, no sitemap
PASS
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 301 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt references 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

robots.txt 200 OK
Size 301 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /
Disallow: /app/
Disallow: /pos_includes/
Disallow: /pos_functions/
Disallow: /pos_layouts/
Disallow: /pos_sections/
Disallow: /vendor/
Disallow: /node_modules/
Disallow: /old_website/
Disallow: /underconstruction/
Disallow: /new_off/

Sitemap: https://immocastle.dz/sitemap.php
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

A+
Domain Intelligence
immocastlepromotion.dz — via icosnet, 6 months old, hosted on Icosnet SPA - Icosnet SPA, DZ
PASS
immocastlepromotion.dz — via icosnet, 6 months old, hosted on Icosnet SPA - Icosnet SPA, DZ
Info::
Registrar: icosnet
Info::
Hosting: Icosnet SPA - Icosnet SPA, DZ
Got: AS36891
Domain expiry

Unknown

SSL certificate

87 days

Issued by Let's Encrypt

Domain age

6 months

Registered March 18, 2026

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Icosnet SPA - Icosnet SPA, DZ

ASN AS36891

197.140.11.7

Registrar

icosnet

Lock status unknown Name servers unknown
Expiry timeline
Today
+1 year
SSL expiry Danger zone (≤30 days)
Registrar icosnet
Created March 18, 2026 (6 months ago)
Registrant IMMOCASTLE PROMOTION
Hosting
IP Address 197.140.11.7
ASN AS36891 (Icosnet SPA - Icosnet SPA, DZ)
Provider Icosnet SPA - Icosnet SPA, DZ
Data source: whois (0.9s)
A+
HTTP Probe Timing
Total 379 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
179 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
55 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
61 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
379 ms
Total Time Total request time from DNS lookup through full response.
379 ms

Connection waterfall

DNS Lookup 179 ms TCP Connect 55 ms TLS Handshake 61 ms Server Processing 83 ms Content Transfer 1 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback