Ask Charly Leetham
Science & Tech • Business
Our goal is to assist small to medium business owners use the power of the Internet as an avenue to market their organisations in an appropriate and cost-effective manner.

We assist small businesses to define and refine their processes, plan and build their web presence using current and emerging technologies.

We provide ongoing support and advice to assist businesses to
maintain and grow a crucial path to market and focus on growing your business
Interested? Want to learn more about the community?
August 21, 2025
Think IP Addresses Don’t Matter? Think Again (2025/588)

If you’ve ever been told “that’s your private IP, not your public one” — or gotten mysteriously blocked from a site or app — your IP address is likely the culprit.

In this episode, Charly breaks down what IP addresses are, the different types, and why they still matter (even if you never mess with them yourself).

📌 In this episode:

✅ What IP addresses do and how they route your data

✅ IPv4 vs IPv6 — and why we’re running out of the old ones

✅ The real difference between public and private IPs

✅ Dynamic vs static IPs — and why it matters for whitelisting

🛡️ How IPs affect blocking, access, and network security

🔗 Join the discussion in my community: https://askcharlyleetham.locals.com

Follow us:

Locals: https://askcharlyleetham.locals.com

Rumble: https://rumble.com/askcharlyleetham

Odyssey: https://odysee.com/@askcharlyleetham:4

YouTube: https://youtube.com/askcharlyleetham

Facebook: https://www.facebook.com/askcharlyleetham

Twitter: https://twitter.com/yourbizmgr

Instagram: https://instagram.com/ask_charly_leetham

LinkedIn: www.linkedin.com/in/charlyleetham

LinkedIn Company: https://www.linkedin.com/company/ask-charly-leetham/

Spotify: https://askcharlyleetham.com/likes/rise-and-shine

Apple Podcasts: https://podcasts.apple.com/us/podcast/ask-charly-leetham-online-business-manager/id1659738721

iHeartRadio: https://www.iheart.com/podcast/269-ask-charly-leetham-online-105944212/

Amazon Music: https://music.amazon.com/podcasts/662f1e44-115d-4094-862b-efe9307e0df4/ask-charly-leetham-online-business-manager

https://rumble.com/v6xsbl0-think-ip-addresses-dont-matter-think-again-2025588.html

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February 22, 2024
Remembering All The Things - Daily Dose Of Business Inspiration (2024/47)

Life is busy and there's just so many things to remember. What tools do you use to help you keep on top of ALL the things?

00:05:41
February 21, 2024
Practice The Pause - Daily Dose Of Business Inspiration (2024/46)

It's easy to react or respond quickly to messages and the like. It's better to do that mindfully. That's why I try to Practice The Pause.

00:03:54
February 20, 2024
Setting Boundaries Is Good For Business - Daily Dose Of Business Inspiration (2024/45)

Boundaries are important in life. Today we look at what that means in business.

00:04:34
What Is Web Caching and Why Can It Break Everything If You Get It Wrong? (2025/589)

Ever updated your website only to find your changes don’t show up? That’s caching in action — and it can speed up your site or totally wreck your user experience if you don’t manage it right.

In this episode, Charly explains caching from the ground up, covering browser, server, CDN, and even ISP-level caching. Learn how it works, where it can go wrong, and what you need to do to avoid the biggest pitfalls.

📌 In this episode:

✅ What caching actually is — and why it matters

✅ Different types: browser, server, CDN, ISP

✅ Why outdated cache can break sites and confuse users

✅ When caching improves speed and when it makes things worse

🛡️ Why “more caching” isn’t always better — and how to reset everything

🔗 Tip: Use a VPN to test for ISP caching if you suspect a stuck version

🔗 Join the discussion in my community: https://askcharlyleetham.locals.com

Follow us:

Locals: https://askcharlyleetham.locals.com

Rumble: https://rumble.com/askcharlyleetham

Odyssey: ...

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April 30, 2024
The Gratitude Game!

Come and join me in playing the Gratitude Game.

Share in the comments below, one thing EACH DAY, that you're grateful for.

It can be as simple as "I'm grateful for being able to move my body" or "I'm grateful to have food to eat".

The idea is to remind ourselves, that no matter how difficult business (or life) gets, we have something to look forward to. I'll start

I'm grateful to have people around me who support me.

August 20, 2025
What Actually Happens When You Change DNS Settings — And Why It Might Break Things? (2025/587)

Ever changed a domain setting and wondered why your emails vanished or your website stopped showing the right version? This episode breaks down the real reasons behind DNS propagation delays and what you can do to avoid disaster.

📌 In this episode, Charly explains:

✅ What DNS propagation really is (hint: it's not instant)

✅ Why your changes take time to spread across the internet

✅ What TTL (Time to Live) means and how it affects your updates

✅ Best practices before migrating websites or email servers

✅ Tools like “What's My DNS” and “MXToolbox” to track changes

✅ Why caching (browsers and ISPs) can trip you up

🛡️ Avoid lost emails, broken sites, and confusion by understanding the pull nature of DNS updates and planning ahead.

🔗 Tool Mentioned: https://www.whatsmydns.net

🔗 Tool Mentioned: https://mxtoolbox.com/supertool.aspx

🔗 Join the discussion in my community: https://askcharlyleetham.locals.com

Follow us:

Locals: https://askcharlyleetham.locals.com

...

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