FOR SMALL BUSINESS & EVERYDAY IT
Create an invoice, check a connection, or understand your domain. Free tools with clear next steps.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Website maintenance | 3 | £80.00 | £240.00 |
Make something useful. Understand what you find.
YOUR NEXT TASK
Start with a task. Leave with a result.
Made for the work
you need to do.
6 tools shown
Create a branded invoiceInvoice StudioA PDF in your chosen currencyCheck a slow connectionNetwork CheckMeasurements with clear next stepsInspect a domainDNS & Domain CheckerA view of your public configurationCheck email authenticationEmail Deliverability CheckerEmail DNS findings, explainedPlan a subnetSubnet PlannerAddress ranges ready to useMake a stronger passwordPassword GeneratorA password that stays in your browser| Description | Qty | Rate | Amount |
|---|---|---|---|
| Website maintenance | 3 | £80.00 | £240.00 |
Thank you for your business.
INVOICE STUDIO · FREE TOOL
Add your branding, choose a currency and download a clear PDF invoice.
NETWORK CHECK
Check the numbers. Find your next step.
Your public IP and a quick connection test, explained.
Automatic lookup is running.
Detecting your public IP address...
Location is approximate. Metadata appears after a successful lookup.
A short test to Cloudflare using about 14 MB of transfer data plus overhead. Useful for comparisons; it may not reach your line's maximum speed.
Run a quick connection test
Download
-- Mbps
Upload
-- Mbps
Latency
-- ms
Jitter
-- ms
Run a speed test to view plain-language guidance.
See how your download, upload, latency and jitter compare, with practical checks for everyday work and calls.
A WORKED EXAMPLE
A fast download result can hide another problem. These illustrative numbers suggest investigating upload capacity and variable delay.
Port233 combines public IP metadata with browser measurements to help separate provider, Wi-Fi, device and congestion symptoms. A result is a snapshot, not a full audit.
Your public IP is the address remote services see when your device leaves your local network. It can help confirm which provider, country, region, and autonomous system are currently carrying your traffic, especially after a router reboot, VPN change, or failover event.
Download speed affects streaming, browsing, and file transfers. Upload speed matters for video calls, backups, cloud storage, and sending large files. Latency and jitter usually explain why an otherwise fast connection still feels poor during calls or gaming.
Run a second test if another device is downloading updates, if Wi-Fi signal is weak, or if the result is much lower than your usual service level. Comparing a wired test with a Wi-Fi test is often the fastest way to separate broadband problems from local wireless problems.
This short browser-to-Cloudflare test may understate a fast connection. It does not show packet loss or separate loaded latency. Read how the measurements work.
Location metadata is approximate. A public IP lookup does not identify an exact address or show private LAN devices.
It shows the public IP address seen by remote services, approximate provider metadata, and browser-based download, upload, latency, and jitter measurements.
No. IP metadata is approximate and may show a provider hub, registry location, VPN endpoint, or commercial database estimate rather than a physical address.
Run more than one test when Wi-Fi signal is weak, background downloads are active, results are lower than usual, or you need to compare wired and wireless performance.
Useful details include the time of test, public IP, provider or ASN, download and upload speed, latency, jitter, device type, location in the building, and whether VPN or mobile data was active.
PRACTICAL GUIDES
Worked examples and practical checks to help you use your results.
TROUBLESHOOTING
Change one condition at a time and keep a useful record.
Read the checklistBUSINESS ADMIN
From your first line item to a reusable setup and a finished PDF.
Read the walkthrough →WORKED EXAMPLE
Download, upload, latency and jitter, with a useful next check.
Read the guide →BUILT & PUBLISHED BY PORT233 LTD
Explore how the tools work, where their limits are, and how to report a correction. Practical help starts with knowing what a result can tell you.
Invoice Studio joins the tool collection, with a practical invoice walkthrough and simpler navigation.
Worked examples, methodology notes and a free troubleshooting worksheet.
Useful external services
Optional external services for network or privacy work. A purchase does not change your diagnostic results.
Useful for private browsing, VPN testing, travel, and checking how your public IP appears online.
View Proton VPNSome external links may be affiliate links. Port233 may earn a commission if you purchase through them, at no extra cost to you. Read the affiliate disclosure.