Nudge is a free browser extension for Chrome and Firefox that provides real-time trust scores on every website, detecting scams, phishing, and fraud using a database of over 1.1 million verified domains across 177 countries.
What is Nudge?
Nudge is a consumer-focused browser extension that silently evaluates every website you visit, assigning a trust score from 0 to 100 and showing a green (safe), amber (caution), or red (danger) badge. It checks each domain against a curated database of 1.1+ million verified domains and, for unknown sites, uses AI to analyze page content, payment fields, and seller signals. The extension runs on Chrome, Firefox, and Android via Firefox, and is developed by the team at bynudge.com.
Key Features
- Real-time trust scores — Every website gets a score (0–100) with context-specific reasoning. Marketplaces like eBay and Facebook show individual seller reputation; large retailers like Walmart verify once per session.
- Email verification — Gmail and Outlook emails show a green, amber, or red banner based on sender domain checks against the 1.1 million verified domain list.
- Safe redirect suggestions — When a flagged scam site is encountered, Nudge offers the most relevant trusted alternative (e.g., Amazon, Zillow, official brand site).
- Deals and discounts — On verified retailer sites, Nudge automatically surfaces loyalty programs, promo codes, and discounts from 89 merchants.
- News source credibility — Articles display whether the source is in Nudge’s verified publisher list or unestablished, helping users assess trustworthiness before sharing.
Who is it for?
- Online shoppers — Buyers on eBay, Facebook Marketplace, or unknown retailers can check seller reputation and get safe alternatives if a listing is risky.
- Email users — Anyone using Gmail or Outlook can automatically see whether incoming sender domains are legitimate or potential phishing attempts.
- News readers — People who share articles can quickly verify whether a news source is in Nudge’s verified publisher database, reducing spread of misinformation.
What can you do with Nudge?
- Shop safely on marketplaces: When browsing an eBay listing, Nudge displays the seller’s trust score (90/100 example), number of reviews, and positive feedback percentage, along with a link to eBay’s buyer protection.
- Verify email senders in real time: Open a suspicious email in Gmail; Nudge places a verification banner on the message indicating the sender’s domain status (green=legitimate, red=phishing).
- Avoid fake retailer sites: Land on an unknown storefront; Nudge shows a red danger badge with a plain-English explanation and suggests a trusted alternative like Amazon or the official brand site.
How does Nudge work?
When you visit any website, Nudge instantly checks the domain against its 1.1 million verified domain database and community signals. For unknown sites, AI analyzes the page content, payment fields, seller signals, and scam patterns to generate a trust score. A badge then appears — green, amber, or red — with a plain-English explanation and safe alternatives if needed. The entire process takes about three seconds and runs silently in the background.
Pricing
Nudge is free forever. No subscription, no account required, and no signup needed. The company states that protection “shouldn’t have a paywall.”
FAQ
Is Nudge free to use?
Yes, Nudge costs nothing and is free forever. There are no paid tiers, hidden fees, or subscription plans.
Does Nudge track my browsing history or sell my data?
No. By default, all browsing history, purchase data, and site scores are stored only on your device — never on Nudge’s servers and never sold. If you opt into community signals, only anonymous domain visit counts (no URLs or personal identifiers) are shared.
