u/mlvps

Hey, I just shipped nullmark.tech and I want real people to break it before I spend any time promoting it. What to test:

Go to nullmark.tech on desktop

Paste any URL (your own website, Google, whatever)

Generate a Nullmark link

Send that Nullmark link to yourself on Instagram DM, or put it in your Instagram bio, or open it from inside any social app

See what happens

What I want to know: Known issues I am watching: What I am NOT asking for: Feedback on whether the idea is good. I will figure that out from whether anyone pays for it. Right now I just want the thing to work correctly. $30 lifetime if anyone tests it and finds it useful. No pressure.

Does the "open in browser" prompt appear correctly when you open it from inside Instagram or TikTok?

Does the prompt look trustworthy or sketchy?

Is the copy on the prompt clear? Does it explain why you should switch browsers?

What browser/device/platform did you test on?

Did anything break?

On desktop (where there is no in-app browser) - does it just redirect cleanly to the destination?

Facebook's in-app browser has a weird UA string that sometimes slips through detection

Some older Android Instagram versions behave differently

nullmark.tech ,takes 3 minutes to test. Honest takes only, please.

nullmark.tech When someone clicks a link inside Instagram, TikTok, or Facebook, it opens inside the app's built-in browser, not their real browser. That sandboxed environment breaks autofill, Apple Pay, and saved passwords. Conversions die. Nullmark wraps your link. The user clicks it from inside the app, gets a quick prompt to open in their real browser, and lands on your page the right way. Visually it is pretty minimal, a landing page with a link input, generates a Nullmark redirect URL, copy and paste it wherever you were using your original link. The "open in browser" prompt the user sees is clean and unintimidating. Not a popup, not a fullscreen takeover. Just a quiet redirect suggestion. Use case examples:

Built solo. $30 lifetime right now. nullmark.tech (Would have posted a screenshot but wanted to keep this simple. The site is just a clean form input, nothing wild.)

Instagram bio link for a Shopify store

TikTok bio link for a course or newsletter

Facebook ad destination URL

Any link being shared inside a social media DM or story

What it is: nullmark.tech is a link wrapper. You take your URL, run it through Nullmark, and the output link detects when it is being opened inside an Instagram, TikTok, or Facebook in-app browser. When that happens, the user gets a gentle prompt to open it in their real browser instead.

Why that matters: those in-app browsers break autofill, Apple Pay, stored passwords. Conversion rates in there are genuinely terrible compared to real browser sessions. The fix is getting people out.

What I think is wrong:

The $30 lifetime price might be too cheap to be taken seriously, or it might be exactly right. I have no idea.

The landing page probably looks like a solo founder built it at 11pm, because it was.

I have zero social proof, zero case studies, zero customers.

What I want roasted: nullmark.tech

Does nullmark.tech as a name make any sense?

Is the value prop on the landing page clear in the first 5 seconds?

Is $30 lifetime the right price or am I underselling it?

What would make you actually buy this?

Launched nullmark.tech about a week ago. Zero budget, solo founder, no connections in the space.

The product: one link that kicks Instagram and TikTok users out of the in-app browser and into their real browser before they hit your site. In-app browsers block cookies, break tracking, and silently tank your conversion rates. Roughly 40% conversion lift in testing.

$30 lifetime deal right now.

Here's my exact zero-budget acquisition playbook, for anyone in a similar spot:

1. Reddit first.

Find threads where founders are complaining about conversion rates, Instagram traffic not converting, or launch results being disappointing. Add genuine value, mention I built something for exactly this problem.

2. Twitter/X cold outreach.

DMing founders who tweet about launch results that feel lower than expected. Not pitching, just sharing what I learned about in-app browsers and letting curiosity do the work.

3. Build in public on threads like this one.

The people reading these posts are exactly the people Nullmark is built for.

4. Product Hunt eventually, but not yet.

Not launching until I have at least 3-5 paying users who can vouch for it. Zero social proof feels like a waste of the window.

What I've learned so far: the in-app browser problem is one of those things people don't know they have until you describe it. Then it clicks immediately.

That's a good sign for the product, but it means education is half the sale.

0 customers as of today. Documenting this publicly so | stay accountable.

What worked for you when getting your first customers with no budget?