SLT bets on hiding your link from platform bots. Obsydian bets on protecting what's behind it.
SLT ("Stealth Link Technology") is a link-in-bio built around stopping Meta and other platforms from detecting and penalising your bio link — a stack it calls "six-layer protection": bot fingerprinting ("Canary Pixel"), Cloudflare Turnstile, country/VPN blocking, and "Meta Radar" bot-activity monitoring, plus bot-filtered real-time analytics and per-link pay-as-you-go pricing.
We're biased — but honest.
SLT's core mechanism — showing platform crawlers different content than real visitors so a link goes undetected — is a technique generally known as cloaking, which most platforms' terms explicitly restrict; it's an arms race SLT fights on your behalf, not a one-time fix, and their own "Meta Radar" monitoring feature is really a tell that detection changes and breaks things reactively. Obsydian takes the other route: no cloaking, nothing hidden from platforms, and instead a protection layer on the *content itself* — visible and invisible watermarking, automatic EXIF/GPS scrubbing, and leak tracing — so there's nothing for a platform to flag in the first place.
| Feature | Obsydian | SLT |
|---|---|---|
| Links on the free plan | Unlimited | Up to 10 pages (paid) |
| Free page without their branding | Small badge on Free — removed on paid | — |
| Built-in image watermarking | Visible — 10/mo free, unlimited on paid | — |
| Invisible (steganographic) watermark | On paid | — |
| Automatic EXIF / GPS removal | Always on, every image | — |
| On-device video metadata scrubber | ✓ | — |
| Creator-friendly content policies | Yes — won't deplatform your niche | Built around adult-platform links |
| Click & view analytics | Free basic · deeper on paid | Bot-filtered traffic analytics |
| Custom domain | On Black | — |
| Starting paid price | £9 / mo | £7.49/mo + per-link fees |
Comparison reflects each provider's publicly listed plans and features as of June 2026. Details change — check each provider for the latest.
Comparison reflects each provider's publicly listed plans and features as of June 2026. Details change — check each provider for the latest.
All product names, logos and brands are property of their respective owners and are used here for identification and comparison purposes only. Their use does not imply endorsement.