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Table of Contents
Telenegar Site Check Tool
The Telenegar Site Check Tool is a web diagnostic utility designed to test a website's overall availability, HTTP response status, redirect behavior, and SSL/TLS certificate health.
It enables network engineers, webmasters, and security auditors to inspect web service accessibility and response characteristics from remote, distributed probe locations.
Tool Features & Parameters
The Site Check interface provides streamlined configuration options to test web server responses:
| Parameter | Description | Options / Examples |
|---|---|---|
| Target URL / Domain | The website hostname or full URL to inspect. | e.g., google.com, https://telenegar.ir |
| Include redirect chain | Traces the full HTTP redirect path (301/302/307/308 redirects) from initial entry to final destination URL. | Checkbox (Enabled / Disabled) |
| Fetch page title | Parses the target HTML payload to extract and verify the `<title>` tag content. | Checkbox (Enabled / Disabled) |
| PROBE | The geographical vantage point or cloud provider executing the HTTP/HTTPS request. | Falkenstein, Germany — Hetzner Online GmbH, domestic Iran probes, regional cloud nodes |
How to Perform a Site Check
# **Enter Target Domain or URL:** Type the domain or address into the input field (e.g., ''google.com''). # **Trace Redirects (Optional):** Check **Include redirect chain** to diagnose multi-hop URL redirects, canonical domain enforcement, or HTTP-to-HTTPS upgrades. # **Retrieve Metadata (Optional):** Check **Fetch page title** to confirm the web server returns the correct HTML document structure and page title. # **Select Probe Location:** Choose a remote probe from the **PROBE** dropdown menu (e.g., ''Falkenstein, Germany — Hetzner Online GmbH'') to simulate requests from a specific geographical network. # **Execute Check:** Click the blue **Check** button to initiate the request and view response codes, latency metrics, certificate details, and header details.
Key Use Cases & Diagnostics
1. Availability & Uptime Verification
Confirm whether a web service is online and returning standard HTTP success codes (`200 OK`) or error states (`500 Internal Server Error`, `502 Bad Gateway`, `503 Service Unavailable`).
2. Redirect Loop & Canonical Path Auditing
Trace HTTP redirect paths to detect infinite loops, non-HTTPS fallback risks, or broken URL shorteners:
- Verify HTTP-to-HTTPS redirection (`301 Moved Permanently`).
- Verify canonical domain behavior (`example.com` → `www.example.com`).
3. SSL/TLS Certificate Health & Expiration
Inspect the SSL/TLS handshakes executed during the check to verify certificate validity, Common Name (CN) alignment, Subject Alternative Names (SAN), issuing Certificate Authority (CA), and expiration dates before browsers show security warnings.
4. Global vs. Regional Accessibility
Compare response behaviors across different PROBE vantage points to diagnose geo-blocking, CDN routing issues, or regional network anomalies.
Related Documentation & Tools
- Telenegar DNS Check Tool — Inspect DNS record resolution, propagation, and DNSSEC signatures.
- Telenegar Mail Check Tool — Diagnostic tool for email security, SPF, DKIM, and DMARC verification.
- HTTP Security Headers — Configure security headers (`CSP`, `HSTS`, `X-Frame-Options`) for web servers.
- Cybersecurity Best Practices — System hardening and infrastructure deployment standards.
- Webmail — Audit availability and SSL setup for webmail portals.