CoinStats: Good URLs and impressions up 3x

DebugBear, a Core Web Vitals monitoring vendor, publishes a small library of named customer case studies. One of them covers CoinStats, a cryptocurrency price and portfolio tracking site, and walks through a single root cause, a single fix, and a reported before-and-after change in search performance. Unlike the Rakuten and Vodafone A/B tests Google itself ran, this one is a vendor-published customer story rather than a controlled experiment, and it is worth reading with that distinction in mind.

What was broken#

DebugBear’s write-up quotes CoinStats saying Search Console showed it “doing poorly on Google’s Core Web Vitals,” with high bounce rates, and that it mostly had images causing a slow Largest Contentful Paint. As one example, the team says it “used to include a lot of Base64 images in the HTML document” instead of linking to them through a normal img src URL, and that DebugBear helped it notice this was increasing the page size.

What CoinStats changed#

The example fix was narrow: replace inline Base64 images with conventional img src URLs. DebugBear’s case study quotes CoinStats’ Senior SEO Specialist, Rafayel Begoyan, saying “we’ve updated around 15,000 pages and saw some nice gains from it,” and that using img src URLs throughout the site means the download size of the HTML “has been cut in half.” He reports the outcome in one sentence: “Good URLs” and their impressions “have increased 3x since implementation.”

Why this is directional#

DebugBear’s page does not publish a start date, an end date, the raw impression counts behind the 3x figure, or the actual before-and-after Core Web Vitals scores for the pages involved. It is a vendor case study built to sell a monitoring product, told from the customer’s side, with one named quote and no independently reproducible numbers. That does not make the claim false, but it does mean the “3x” figure should be cited as CoinStats’ own reported comparison, not as a rate any site removing Base64 images should expect to match.