Tool Comparison · August 2026
Compare Silktide (formerly Nibbler) vs. Nebula to Get Verified Audit Results
Silktide is an enterprise website quality platform. Nebula is a free, instant audit for founders whose paid ads are not converting.
Bottom line up front
Silktide (formerly Nibbler) is an enterprise website quality platform with custom pricing and a sales demo. Nebula is a free, instant landing page audit for founders whose paid ads are not converting. If you need accessibility and compliance checks across a large site, Silktide fits; if you need to know why one landing page is not converting, Nebula answers in under 2 minutes.
| Feature | Nebula | Silktide (formerly Nibbler) |
|---|---|---|
| Cost | Free audit + $97 one-time fix prompts | Custom enterprise pricing - minimum 12-month contract |
| Requires sales call | No | Yes - demo required to get pricing |
| Turnaround time | Under 2 minutes | Weeks - enterprise onboarding required |
| Checks conversion criteria | Yes - 9 specific conversion checks per page | No - accessibility, SEO, content quality, legal compliance |
| Audience | Founders running paid ads on a single landing page | Enterprise teams managing large site portfolios |
| Evidence per finding | Yes - HTML evidence shown per signal | Score + audit log per page element |
| Fix path | $97 tailored implementation kit - implement yourself or with developer | Remediation workflow tools inside the platform |
Bottom line
The original Nibbler free tool is retired - nibbler.silktide.com now redirects to Silktide, an enterprise platform built for teams auditing hundreds of pages for accessibility and compliance. If you are a founder running Google Ads to a single landing page and want to know why it is not converting, Silktide is not designed for that use case. Nebula is.
Frequently asked questions
Is Nibbler still free?
No - the original free Nibbler tool is retired. nibbler.silktide.com now redirects to Silktide, an enterprise platform with custom pricing and a minimum 12-month contract. Nebula is free for the audit and does not require a contract.
What is Silktide used for?
Silktide is an enterprise website quality platform used to audit accessibility, SEO, content quality, and legal compliance across large site portfolios. It is not designed to diagnose why a single landing page running paid traffic is not converting.
Does Nebula require a demo or contract?
No - Nebula audits any public URL instantly, no signup, no sales call. The optional $97 repair sprint is a one-time implementation kit, not a subscription.
See what Nebula finds on your page
Free, no signup. Results in under 2 minutes.
Find the Leak →Under 2 minutes · no signup · no sales call