Advertising, websites and automation measured from day one, for businesses in the United States and Mexico.
Hire them alone or stack them. They're all measured the same way: what it cost to win a customer.
I'm Francisco Javier Sierra de León. I manage paid advertising, websites, SEO and AI automation. I don't deliver "impressions" — I deliver what it costs to win a customer, and where that number came from.
Google Ads, Meta (Facebook and Instagram) and TikTok. Campaign structure, ad copy, video creative, negative keywords and weekly optimization against real data.
Fast Next.js sites, deployed on Vercel, measured from day one. Nothing ships without analytics connected — a site that doesn't measure can't be optimized.
Visibility in search engines and in AI answers (ChatGPT, Gemini, Perplexity). Sold as a measurable process, never as a ranking guarantee.
Agents that answer chat and phone calls, qualify the prospect and book the appointment. Automatic lead follow-up and report generation with no manual data entry.
Figures from accounts I manage today. Cases are anonymized by industry and market.
Contracts attributed to an ad
13
Home remodeling · California · from the Meta ad to the signed contract
Cost per closed contract (USD)
$528
29.7× return on ad spend
Best video: 4 contracts and $62,705 closed.
Search CTR
5.94%
+112% from 2.80%
Personal injury law firm · Texas · Google Ads
Active businesses
13
United States and Mexico · advertising, web, SEO and automation
Not an agency with layers. The person who actually touches your account.
My name is Francisco Javier Sierra de León and I work out of Piedras Negras, Coahuila, Mexico. I serve businesses on both sides of the border: law firms, medical clinics, remodeling contractors, water filtration companies, travel agencies and restaurants.
I work in Spanish and English because my clients sell in both. A translated ad is not a bilingual ad, and that difference shows up in cost per conversion.
I keep a small book of accounts on purpose. Weekly optimization of a search campaign can't be done well across fifty accounts at once, and I'd rather say so than fake scale.
The part of the job most agencies never show. Here it's the center of the work.
Every account I manage is monitored continuously and reported on a fixed schedule. The client can always see what was spent, what it produced, and where each number came from.
01
02
03
Home remodeling · California · Meta Ads · four 30-day periods
| Period | Leads |
|---|---|
| 12 abr – 12 may | 43 |
| 12 may – 12 jun | 93 |
| 12 jun – 12 jul | 122 |
| 12 jul – 12 ago | 208 |
Measured with the “Results” column in Meta Ads Manager.
Case files anonymized by industry and market. The figures come from the accounts, not from estimates.
01
Southwest Texas · Google Ads · Search
Campaign CTR
$85 per conversion in Eagle Pass
The engine of the campaign turned out to be English, not Spanish, in a majority-Hispanic market. The data said so; intuition said the opposite. A location bid adjustment was also raising bids in the one city that never converted.
02
California · Meta Ads · Contracts
Leads per month
Best video: 4 contracts · $62,705 closed · $528 per contract
We connected the CRM and the sales board to Meta so every ad is measured by signed contracts, not leads. The finding: the two videos that closed the most contracts had been switched off because their cost per lead "looked expensive". The best one returned 29.7 times its cost. Optimizing for cheap leads was shutting off exactly what sold.
03
Piedras Negras, Coahuila · Website · SEO and GEO
Site and visibility structure in production
Work in progress. New site with SEO and GEO structure live, and a baseline of traffic and visibility captured on launch day. Without a baseline there's no honest way to claim an improvement, so I'm not publishing figures here yet.
Tell me what you sell and who you sell it to. If I'm not the right person, I'll say so on the first call.
I reply the same business day.
