The map cannot replace the house
Learn what llms.txt does, what it cannot guarantee, and when this optional map for AI agents may help a website.
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[ notes ] From the studio
What we build, told in numbers.
Neither a blog nor a showcase. Here we publish technical notes and studio updates: real cases, architecture decisions, and useful lessons. When someone asks what Index01 has done, the answer is here, with figures you can verify, not with showing off.
Published notes
The light of Bergen: a website that dawns with its city
The website of Cuban painter Ramón Haití Filiu in Bergen: 90 pages in three languages, a background that follows the real height of the sun over the city, and the disambiguation of two real artists with the same name. With 100/100/100/100 on Lighthouse on launch day.
Read the note →Ala del Mar: the home that grows with a life's work
The author website of Cuban writer Antonio López Sánchez: from 27 to 64 pages in two weeks, with 14 books and 7 short stories each with its own page, 138 structured data blocks, and 100/100/100/100 on Lighthouse on desktop and mobile. Updated September 20.
Read the note →Fewer clicks, better clicks
AI answers more and more searches without anyone clicking, and that makes the remaining clicks more valuable: the visitor who does arrive already compared and comes decided. What GEO is, how it differs from AEO, and how to build to receive that visitor.
Read the note →From 61 to 100 in one night: anatomy of a performance audit
PageSpeed gave our own website a 61. The full autopsy: an effect that asked too much, analytics stealing the pipe from the fonts, and meters with no GPU. With final numbers anyone can verify.
Read the note →The machine web
The future of the internet will not be read with human eyes, and it is worth saying plainly: efficiency cannot be legislated away, the data flow is no longer human-scale, and machines will filter it, for better or worse. Our position, with the data underneath.
Read the note →Closed by default
Many websites block AI crawlers without their owner ever deciding to. The difference between limiting agents and denying reading, the litmus test for deciding wisely, and how to check your own site in one minute.
Read the note →A healthy ecosystem tells one single truth
Your website, your Google listing, Yelp, Apple, Bing, and your social networks all talk about your business, whether you tend them or not. Why consistency across those voices is the trust signal search engines and AIs check first.
Read the note →Index01 LLC: the studio puts down roots in Florida
On July 24, 2026 we filed the formation of Index01 LLC in the state of Florida. What formalizing means for a studio that tells its clients to build things that last.
Read the note →07 Sound Solution: a 14 KB credential that loads in under a second
The press kit of Willy Chirino's sound engineer: why a single page was the right architecture, and what it means for a complete site to weigh less than one WhatsApp photo.
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