---
title: "CoinStats: Good URLs and impressions up 3x"
url: https://surfil.com/blog/coinstats-core-web-vitals-organic-traffic
section: studies
language: en
published: 2026-09-16T00:00:00.000Z
modified: 2026-09-16T00:00:00.000Z
author: Adam Hafez
topics: ["Technical SEO", "Page speed"]
---

# CoinStats: Good URLs and impressions up 3x

## The short answer

CoinStats, a crypto portfolio tracker, had poor Core Web Vitals, mostly slow Largest Contentful Paint caused by images. In DebugBear's case study its SEO specialist says the team updated around 15,000 pages and that dropping embedded Base64 images cut HTML download size in half. "Good URLs" and their impressions are reported up 3x.

## Key takeaways

- CoinStats, a cryptocurrency price and portfolio tracking site, had poor Core Web Vitals and high bounce rates, mostly from images slowing Largest Contentful Paint.
- One fix the team names is replacing Base64 images embedded in the HTML document with standard img src URLs, which had been increasing page size.
- CoinStats says it updated around 15,000 pages, and that using img src URLs throughout the site cut the HTML's download size in half.
- DebugBear's case study quotes CoinStats saying "Good URLs" and their impressions have increased 3x since implementation.
- The case study does not publish a timeframe, exact before and after scores, or specific URLs, so treat the multiplier as directional, not a precise rate.

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](/blog/rakuten-vodafone-core-web-vitals-case-studies), 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.

## Common questions

### What exactly was wrong with CoinStats' pages?

According to DebugBear's case study, Search Console showed CoinStats doing poorly on Core Web Vitals, with high bounce rates. The team says images mostly caused a slow Largest Contentful Paint, and names Base64 images embedded in the HTML as one example.

### How many pages did CoinStats actually change?

CoinStats' Senior SEO Specialist Rafayel Begoyan says "we've updated around 15,000 pages." Separately, he says using img src URLs instead of inline Base64 images cut the HTML's download size in half. The case study does not link the two figures explicitly.

### Does "3x" mean search traffic tripled?

No. The case study says "Good URLs" and their impressions "have increased 3x since implementation." That covers impressions of Good URLs, not clicks or all search traffic. DebugBear publishes no dates or raw numbers, so treat it as CoinStats' own reported comparison.

## Sources

1. [How CoinStats Grew Organic Traffic With Better Core Web Vitals](https://www.debugbear.com/case-study/coinstats) - DebugBear (primary)