Coqnio Network Tools: IP Lookup, Speed Test, DNS & Ports

Understanding My IP & Network Diagnostics

This module detects your active public IPv4 address, ISP provider, geolocation, and connection metadata.

Key Metrics Explained:

Public IP : The unique outward-facing address assigned to your internet router by your Internet Service Provider (ISP). ISP / ASN : The organization providing your internet connectivity and Autonomous System Number. Proxy / VPN : Detects if your traffic is being routed through an anonymous proxy, VPN tunnel, or Tor network.

Understanding Speed Test & Metrics

The Speed Test tool evaluates your internet connection performance through realistic multi-stage jitter and bandwidth measurement.

Key Metrics Explained:

Latency (Ping) : The reaction time of your connection (how fast you get a response after sending a request). Lower is better. Jitter : The measure of variability in ping time over your connection. High jitter causes lag in VoIP and gaming. Download Speed : How fast data can be transferred from the server to your device (Mbps). Upload Speed : How fast data can be sent from your device to the server (Mbps).

Understanding the IPv4 Subnet Calculator

The IPv4 Subnet Calculator analyzes an IPv4 address and its CIDR prefix to determine network boundaries, and can also divide the network into smaller subnets.

Key Terminology:

Network Address : The identifier for the network segment. The host bits are set to 0. Broadcast Address : Special address used to send data packets to all devices in the subnet (host bits set to 1). Usable Host Range : The valid assignable IP addresses for workstations, servers, and devices. Divide into Prefix : Splits the network into equal-sized subnets by choosing a longer prefix. Each extra bit doubles the number of subnets and halves the hosts in each. Subnet Results : Lists the network address, usable host range, broadcast address and mask of each subnet. Only the first 64 are shown; use Export CSV to save the displayed table. Example : 192.168.1.0/24 divided into /26 gives 4 subnets with 62 usable hosts each.

Understanding the IPv6 Subnet Calculator

The IPv6 Subnet Calculator analyzes an IPv6 address and its prefix length, shows the network range in compressed and expanded notation, and can divide the network into smaller subnets. IPv6 has no broadcast address, so the last address of a range is simply its last usable address.

Key Terminology:

IPv6 Address : A 128-bit address written as eight groups of hexadecimal digits separated by colons. Leading zeros can be dropped and one run of zero groups can be replaced by ::. Prefix : The number of leading bits that identify the network (for example /64). The remaining bits identify the interface. Most LANs use /64. Network Address : The first address of the prefix, with all host bits set to 0. Compressed / Expanded : The shortest notation versus the full form with eight groups of four digits. First / Last Address : The first and last addresses inside the prefix. Total Addresses : The number of addresses in the prefix, equal to 2 to the power of (128 minus prefix). Number of /64 subnets : How many standard /64 subnets fit in the prefix (shown when the prefix is /64 or shorter). Address Type : The class of the address, such as global unicast, unique local (fc00::/7), link-local (fe80::/10), multicast or documentation. Reverse DNS zone : The ip6.arpa name used for reverse (PTR) lookups, built from the network digits in reverse order. Divide into prefix : Splits the network into smaller subnets using a longer prefix. Example: 2001:db8::/48 divided into /64 gives 65,536 subnets. Only the first 16 are listed.

Understanding the File Size Calculator

The File Size Calculator converts a value into every data unit at once, from bits up to yottabytes, in either decimal (SI) or binary (IEC) standard.

Key Terminology:

Bit / Byte : A bit is the smallest unit of data (0 or 1). One byte is 8 bits. Files are measured in bytes; network speeds in bits. Decimal (SI) : Steps of 1,000: 1 KB = 1,000 B, 1 MB = 1,000 KB. Used by disk and USB makers and by internet providers. Binary (IEC) : Steps of 1,024: 1 KiB = 1,024 B, 1 MiB = 1,024 KiB. Used by Windows and by memory (RAM), which is why a "1 TB" drive shows about 931 GB. Result order : All units are listed from the smallest (bit) to the largest (YB / YiB). The row of the unit you entered is highlighted. Example : 1 GB (decimal) = 1,000,000,000 bytes = 8,000,000,000 bits = about 0.931 GiB.

Understanding the Internet Speed Calculator

The Internet Speed Calculator estimates how long a download or upload takes for a given file size and connection speed, and converts the speed between bits and bytes per second.

Key Terminology:

Mbps vs MB/s : Mbps is megabits per second (how ISPs advertise speed); MB/s is megabytes per second (what download managers show). Divide Mbps by 8 to get MB/s: 100 Mbps = 12.5 MB/s. Estimated Time : File size in bits divided by the effective speed in bits per second. Real-world Efficiency : Actual speed is usually lower than advertised because of protocol overhead, Wi-Fi quality, and server limits. 90-95% is a common estimate; use a lower value for weak connections. Standard : Applies to the file size only. Speeds always use decimal units (1 Mbps = 1,000,000 bits per second). Time at this speed : A quick table showing how long common file sizes (1 MB to 1 TB) take at your speed. Example : 1 GB at 100 Mbps: 8,000,000,000 bits / 100,000,000 bps = 80 seconds (1 min 20 s) at 100% efficiency.

Understanding the Internet Speed Calculator

The Internet Speed Calculator converts an internet speed into every unit at once, between bits per second (bps, Kbps, Mbps, Gbps, Tbps) and bytes per second (B/s, KB/s, MB/s, GB/s).

Key Terminology:

Bit vs Byte : Speeds in Mbps use bits; speeds in MB/s use bytes. One byte is 8 bits, so MB/s is always 8 times smaller than Mbps. Conversion rule : MB/s to Mbps: multiply by 8. Mbps to MB/s: divide by 8. Why it matters : Internet providers advertise speed in Mbps, while download managers and browsers usually show MB/s. A 100 Mbps plan downloads at most about 12.5 MB/s. Unit prefixes : All prefixes are decimal: 1 Kbps = 1,000 bps, 1 Mbps = 1,000 Kbps, 1 Gbps = 1,000 Mbps. Example : 10 MB/s = 80 Mbps, and 100 Mbps = 12.5 MB/s.

Understanding IP Format Converter

The Real-Time Multi-Format Converter instantly translates IPv4 addresses across different standard representations.

Understanding IP Lookup & Geolocation

The IP Information Lookup tool queries global WHOIS and GeoIP registries to retrieve ownership and regional details.

Understanding DNS Records & Domain Expiry

The DNS Records Lookup tool queries comprehensive DNS zones (A, AAAA, CNAME, MX, TXT, NS) and estimates domain registration lifecycle metrics like expiry dates and hosting providers.

Comprehensive Record Types Explained:

Hosting / ASN : Detects the autonomous system organization and cloud/hosting provider hosting the domain's IP addresses. A / AAAA : Maps domain names to IPv4 and IPv6 addresses. MX Record : Specifies mail server exchangers responsible for receiving emails.

Understanding TCP Port Checking

The TCP Port Checker instantly scans essential well-known service ports to check whether they are open and accepting incoming network connections.

Port Descriptions:

Port 21 (FTP) : Used to transfer files between computers (upload/download). Data is not encrypted, so SFTP is recommended instead. Port 22 (SSH) : Encrypted remote terminal access to servers. Also used by SFTP and SCP. Port 25 (SMTP) : Sends email between mail servers. Often blocked by home ISPs to prevent spam. Port 53 (DNS) : Translates domain names (e.g. google.com) into IP addresses. Port 80 (HTTP) : Standard unencrypted web traffic. Usually redirected automatically to HTTPS. Port 110 (POP3) : Downloads email from the server to a device, usually removing it from the server afterwards. Port 443 (HTTPS) : Encrypted web traffic. The standard for almost every modern website. Port 3306 (MySQL) : Default port of MySQL/MariaDB database servers. Should not be exposed to the public internet. Port 3389 (RDP) : Remotely controls a Windows desktop. A common brute-force attack target. Port 8080 (HTTP-Proxy) : Alternative port for web servers, proxies, or web apps during development.

Understanding IP Traceroute

Traceroute tracks the exact network path that data packets take from your device across intermediate routers and gateways to reach a target destination.

Loading...

Network Speed & Latency Test

File Size Calculator

Internet Speed Calculator

Internet Speed Calculator

IPv4 Subnet Calculator

IPv6 Subnet Calculator

Real-Time Multi-Format Converter

Search Public IP Information

Network Details

Geolocation

DNS Records & SSL/TLS Lookup

Comprehensive Query Results

TCP Port Availability Checker

IP Traceroute

Hop Path Analysis

Loading...

Network Speed & Latency Test

File Size Calculator

Internet Speed Calculator

Internet Speed Calculator

IPv4 Subnet Calculator

IPv6 Subnet Calculator

Real-Time Multi-Format Converter

Search Public IP Information

Network Details

Geolocation

DNS Records & SSL/TLS Lookup

Comprehensive Query Results

TCP Port Availability Checker

IP Traceroute

Hop Path Analysis

Understanding My IP & Network Diagnostics

Key Metrics Explained:

Understanding Speed Test & Metrics

Key Metrics Explained:

Understanding the IPv4 Subnet Calculator

Key Terminology:

Understanding the IPv6 Subnet Calculator

Key Terminology:

Understanding the File Size Calculator

Key Terminology:

Understanding the Internet Speed Calculator

Key Terminology:

Understanding the Internet Speed Calculator

Key Terminology:

Understanding IP Format Converter

Understanding IP Lookup & Geolocation

Understanding DNS Records & Domain Expiry

Comprehensive Record Types Explained:

Understanding TCP Port Checking

Port Descriptions:

Understanding IP Traceroute

Domain Blocked