SSL Certificate Details for forum.t4l.ru – Expiry & Chain Checker

⚡ Live Data: Report generated fresh from authoritative registries. 🔄 Force Refresh

🤖 AI Intelligence Summary

The domain forum.t4l.ru is registered with an undisclosed registrar. It resolves to IP address 5.181.255.178, hosted by Internet-Pro LLC. Email delivery is handled by No MX Records Found. No valid SPF record was detected. DMARC protection is missing or unconfigured. Web traffic is secured with an SSL certificate issued by YR2.

Domain Overview: forum.t4l.ru

Domain Registration 🌐

Active N/A

Expires in N/A · DNSSEC: Unsigned

Email Security 🛡️

SPF: Missing DKIM: Not Detected DMARC: Missing

No MX Records Found

SSL Certificate 🔒

Valid Chain 22 Days Left

Issuer: YR2 (2 SANs)

Server & Hosting 🖥️

200 nginx/1.18.0 (Ubuntu)

Yekaterinburg, Sverdlovsk, Russia (RU)

🌐 Domain & Registration Identity View Full Whois Details →

Domain	forum.t4l.ru
Website Title	Sapsan - ��
Registered	N/A
Expires	N/A
Remaining Validity	N/A
Domain Age	N/A
Registrar	N/A
Domain Status	N/A i
DNSSEC Delegation	Unsigned · Zone not signed with DNSSEC keys i
Authoritative Nameservers	N/A i

🛡️ Email Security & Deliverability (SPF, DKIM, DMARC) View Complete Email Security Diagnostics →

Detected Email Provider	📬 No MX Records Found
Primary Mail Server (MX)	`None` i
SPF Record (Sender Policy)	Missing i
DKIM Authentication	Not Detected · (No common third-party selector found; custom keys may be configured) i
DMARC Policy	Missing i
SMTP Port 25 Status	N/A · Inbound mail server handshake response

🖥️ Web Server, Hosting & Network View Full Server & Tech Details →

Web Server Software	nginx/1.18.0 (Ubuntu) i
HTTP Status Code	200 i
Server IP (IPv4)	5.181.255.178 View Geo Details →
IPv6 Address (AAAA)	`Not Configured`
Reverse DNS (PTR)	`vm-5ab71316.na4u.ru`
Server Location	📍 Yekaterinburg, Sverdlovsk, Russia (RU)
ASN Network & ISP	`AS44128 (Internet-Pro LLC)`
Hosting Provider	Internet-Pro LLC i
Control Panel	Not Detected i
Technology Stack	Nginx Recaptcha
HTTP Security Headers	3 / 6 Active (CSP, X-Frame, X-Content) Audit Details →
DNSBL Blacklist Reputation	Clean (0/5 lists)

🔒 SSL/TLS Certificate Summary View Full SSL Certificate & Chain →

Primary Hostname (CN)	*.t4l.ru · Multi-Domain SAN (Covers 2 hostnames)
SSL Issuer	YR2
SSL Valid Till	2026-10-25
Remaining Validity	22 Days
Chain Status	Valid Trusted Chain
Signature Algorithm	`RSA-SHA256`

Whois Ownership & Registration for forum.t4l.ru

📄 View Raw Registry Response ↓

Domain Information i

Registrar Information i

Registrant Contact i

Contact information for this role is not provided or redacted.

Administrative Contact i

Contact information for this role is not provided or redacted.

Technical Contact i

Contact information for this role is not provided or redacted.

📄 View Raw Registry Response Legacy Whois (Port 43)

% TCI Whois Service. Terms of use:
% https://tcinet.ru/documents/whois_ru_rf.pdf (in Russian)
% https://tcinet.ru/documents/whois_su.pdf (in Russian)

No entries found for the selected source(s).

Last updated on 2026-10-03T05:03:01Z

DNS Records for forum.t4l.ru

NS Records i

No NS records found.

A Records i

Name	Data	Copy
forum.t4l.ru.	`5.181.255.178`

AAAA Records i

No AAAA records found.

WWW Records (www.forum.t4l.ru) i

Type	Host	Value	Copy
A	www.forum.t4l.ru.	`5.181.255.178`

MX Records i

No MX records found.

TXT Records i

No TXT records found.

Email Security (MX, SPF, DKIM, DMARC, SMTP) for forum.t4l.ru

Detected Email Provider

📬 No MX Records Found

⚠ No Inbound Mail Servers

Mail Exchange (MX) Routing Records i

Warning: No MX records were found for forum.t4l.ru. This domain cannot receive emails.

SPF Record Validation i

No SPF record found to validate.

Common DKIM Selectors i

No common third-party DKIM selectors found. Custom selectors may be configured.

🔍 Query Custom DKIM Selector

Live DNS Lookup

Using a custom or date-based selector (e.g. crm, newsletter, 2024)? Query its public key live on forum.t4l.ru:

DMARC Policy Validation i

No DMARC record found to validate.

Validation Summary

DMARC Record Published

Fail No DMARC record was found.

Optimization Suggestions

A DMARC record is essential for email security. It tells receiving servers what to do with emails that fail SPF and DKIM checks, protecting your domain from spoofing.

Server IP Blacklist Check (5.181.255.178)

Spamhaus ZEN: Clean

SpamCop: Clean

Barracuda: Clean

GBUdb Truncate: Clean

DroneBL: Clean

SSL/TLS Certificate Details for forum.t4l.ru

Issuer: YR2
Expires In: 22 Days
Chain Status: Valid Chain

🔒 SSL / TLS Protocol Support

Excellent

TLS protocol versions

TLS 1.3	Enabled
TLS 1.2	Enabled
TLS 1.1 (deprecated)	Disabled
TLS 1.0 (deprecated)	Disabled

SSL protocol versions

SSLv3 (deprecated)	Disabled
SSLv2 (deprecated)	Disabled

Main Leaf Certificate

Common Name: *.t4l.ru
SANs: DNS:*.t4l.ru, DNS:t4l.ru
Organization: N/A
Validity: Jul 27, 2026 to Oct 25, 2026
Algorithm: RSA-SHA256

↓ Intermediate CA Certificate ↓

Common Name: YR2
Organization: Let's Encrypt
Valid Till: Sep 03, 2028
Issuer: Root YR

↓ Intermediate CA Certificate ↓

Common Name: Root YR
Organization: ISRG
Valid Till: Sep 03, 2032
Issuer: ISRG Root X1

↓ Intermediate CA Certificate ↓

Common Name: ISRG Root X1
Organization: Internet Security Research Group
Valid Till: Jun 04, 2035
Issuer: ISRG Root X1

Website & Server Intelligence for forum.t4l.ru

Website Identity

Title	Sapsan - ��
Meta Description	Sapsan - ��

Hosting & Server Network

IP Address	5.181.255.178
HTTP Status	200 i
Hosting Provider	Internet-Pro LLC i
Web Server	nginx/1.18.0 (Ubuntu) i
Control Panel	Not Detected i

Technology Profile

Nginx
Recaptcha

HTTP Security Headers

Strict-Transport-Security	Missing
Content-Security-Policy	Present
X-Frame-Options	Present
X-Content-Type-Options	Present
Referrer-Policy	Missing
Permissions-Policy	Missing

IP Details & Geolocation

IP Address	5.181.255.178
Reverse DNS (PTR)	`vm-5ab71316.na4u.ru`
Country	Russia (RU)
Region	Sverdlovsk
City	Yekaterinburg
ZIP Code	N/A
ASN	44128
Organization / ISP	Internet-Pro LLC

Understanding Diagnostic Terms for forum.t4l.ru

Domain Status (EPP)

EPP status codes (e.g., clientTransferProhibited, active) indicating if a domain is locked against unauthorized transfer, pending renewal, or active.

Registrar Information

The authorized or accredited organization managing the domain reservation and authoritative registry delegation.

Nameservers (NS)

Authoritative servers that translate domain names into IP addresses and direct web visitors and mail traffic globally.

A & AAAA Records

Primary address records mapping your domain name directly to standard IPv4 (e.g., 192.0.2.1) and newer IPv6 server network addresses.

MX (Mail Exchange)

Priority-ranked records pointing inbound emails to designated mail server hosts (e.g., Google Workspace, Microsoft 365, Zoho).

SPF & DMARC Security

Email authentication standards that verify authorized sender IPs (SPF) and instruct receiving servers how to enforce security policies (DMARC).

DKIM Signatures

Cryptographic public key in DNS used by receiving mail servers to verify digital signatures on your emails, ensuring messages were not tampered with.

SSL Certificate & Chain

Establishes encrypted HTTPS connections and authenticates domain ownership via an intermediate certificate authority chain.

Hosting Provider & ASN

The physical server infrastructure where website files reside and the autonomous system network (ASN) routing global traffic.

Reverse DNS (PTR)

Pointer (PTR) records that map a server's IP address back to its canonical hostname, verifying server identity and preventing email spam rejection.

HTTP Security Headers

Directives like HSTS, CSP, and X-Frame-Options instructed by the server to protect browser visitors against XSS, clickjacking, and packet sniffing.

⚠️ Report Limitations & Data Sources

Data Currency: This report uses cached registry and DNS data (freshened within 4 hours) for high-speed resolution. Click "🔄 Refresh Live" to query directly against authoritative registries.
DNS Resolution & Propagation: Records are queried via Google Public DNS-over-HTTPS. Global DNS propagation may take up to 24–48 hours across different regional ISP resolvers during recent DNS record changes.
Completeness & Scope: This diagnostic tool analyzes standard authoritative records (A, AAAA, MX, NS, TXT, CNAME, SOA). It does not perform invasive brute-force subdomain scans or unauthenticated DNS zone transfers.
Email Deliverability & Reputation: The security analysis (SPF, DKIM, DMARC, and Port 25 SMTP handshake) reflects public DNS policies and inbound connection states. Recipient spam filters evaluate internal headers that cannot be checked from outside.
Reverse Proxies & CDNs: If a website is behind Cloudflare, Fastly, or another CDN/reverse proxy, the detected IP, web server software, and SSL edge certificate reflect the proxy tier.