NetDiag Portal

◎

My IP Address

Your public IP, geolocation, ISP, PTR record

⬡

Ping

ICMP echo — test reachability and latency

Hostname / IP

Count

Size (bytes)

↝

Traceroute

Map network path hop-by-hop to destination

Hostname / IP

Max Hops

Numeric (no DNS)

⊛

Website Availability

Check if a site is up — HTTP status, timing breakdown

URL

Try: google.com github.com cloudflare.com

◈

Port Check

Test if a single TCP port is open and grab banner

Hostname / IP

Port

Common: 80 443 22 25 3306 5432 6379

⊞

Port Scanner

Scan multiple TCP ports — state, service, banner (max 50)

Hostname / IP

Ports (comma or range)

Presets: Web Mail DB Top-12

◉

DNS Lookup

Query DNS records — A, AAAA, MX, NS, TXT, CNAME, SOA…

Domain

Record Type

Nameserver (optional)

❋

WHOIS

Domain registration, registrar, dates, nameservers

Domain / IP

⊘

Blacklist Check

Check IP against 20 major DNSBL lists (Spamhaus, SpamCop, SORBS…)

IP Address or Hostname

✉

SMTP / MX Check

MX records, SMTP connectivity, SPF, DMARC, DKIM

Domain

Try: gmail.com outlook.com yahoo.com

⊟

HTTP Headers

Response headers, timing, security header analysis

URL

Method

Follow redirects

🔒

SSL Certificate Checker

Certificate details, chain, expiry, SANs, TLS version

Hostname

Port

⬢

ASN Lookup

Autonomous System — holder, prefixes, abuse contacts (RIPE)

ASN Number or IP

Google Cloudflare Lumen Telia

⇆

BGP Lookup

Peers, upstreams, prefix announcements via bgpview.io + RIPE

Target (IP / Prefix / ASN)

Type

8.8.8.0/24 1.1.1.1 AS13335

⤳

AS Path Viewer

BGP AS path routes for IP, prefix, or ASN via RIPE + bgpview

IP, Prefix or ASN

⇌

Peering Info

Full peering data — peers, upstreams, downstreams, IXPs (bgpview.io)

ASN Number

Cloudflare Google Telia

◉

IP Geolocation

Country, city, ISP, ASN, coordinates, timezone, PTR

IP Address or Hostname

⊡

MAC Vendor Lookup

Identify hardware manufacturer from MAC address OUI prefix

MAC Address

⊢

ARP Analyzer

Parse ARP table entries — detect duplicates, vendor lookup, spoofing hints

Paste ARP Table Output (ip arp, arp -a, show arp)

⊕

Subnet Calculator

IPv4 & IPv6 — network, broadcast, host range, mask, binary

IP / CIDR

Subnet Mask (alt)

/8 /12 /16 /24 /28 /30

IPv6 / CIDR

/32 /48 /64 link-local

▦

Mask Calculator

CIDR prefix ↔ subnet mask ↔ wildcard ↔ host count — full table

CIDR Prefix (/0–/32)

OR Subnet Mask

⩐

Wildcard Calculator

Subnet ↔ Wildcard mask — Cisco ACL / OSPF reference

Subnet Mask

OR Wildcard Mask

⇌

IPv4 / IPv6 Converter

Decimal ↔ Hex ↔ Binary ↔ Integer ↔ IPv4-mapped IPv6

IPv4 or IPv6 Address

Examples: 192.168.1.1 10.0.0.1 ::ffff:8.8.8.8

≡

CIDR Cheat Sheet

Complete IPv4 reference /0–/32 — masks, hosts, addresses

⬛

Storage Calculator

Manufacturer TB vs real GiB/TiB — multi-drive conversion

Declared Capacity

Unit

Number of Drives

≈

Bandwidth Calculator

Transfer time ↔ Required bandwidth — multi-speed comparison

File Size

Unit

Bandwidth (Mbps)

Presets: 1 Mbps 100 Mbps 1 Gbps 10 Gbps

File Size

Unit

Target Time

Time Unit

⊗

RAID Calculator

Usable capacity, fault tolerance, speed for RAID 0/1/5/6/10/50/60

Number of Drives

Drive Size (TB)

RAID Level

Drive Speed (MB/s)

⟳

Uptime Monitor

Check website availability and view response history

URL

Recent Check History