Lab Notes

Property of Day91 Labs. If found, please read.

NOTEBOOK NO. 1
WHAT WE TESTED, WHAT BROKE,
WHAT CHANGED
EXP-006 · 12 OCT 2026SHIPPED

A new look, and a mark that means something

AIM
Make the site feel like a lab, and make the logo say what Day91 does.
OBSERVED
The old mark was the number 91 in a green square. It said nothing about the work.
RESULT
A new colour theme across the site, and a new logo: a curved thread joining a claim (purple) to its source (green), drawn as a D.
See the homepage →

claim → source, every time

EXP-005 · 12 OCT 2026SHIPPED

Ask Day91 only answers from what we've published

AIM
Let visitors ask about a company without inventing answers.
OBSERVED
A general AI search can produce confident numbers with no document behind them.
RESULT
The homepage search answers only from published issues. Every row shows its source and how far we checked it. If we haven't published on a company, it says so.
Try Ask Day91 →

no source, no answer

EXP-004 · 12 OCT 2026METHOD

Publishing in minutes, not hours

AIM
Get each issue live the day it's approved.
OBSERVED
Issue 014 took more than two hours to go live because publishing was bundled with site fixes.
RESULT
Publishing is now its own routine: copy the finished issue files, update the issue list, deploy. Site fixes run separately.

one job per run

EXP-003 · 12 OCT 2026TESTING

Merging Battlecard and Compare

AIM
Both tools answered the same question: how does this company stack up?
OBSERVED
People had to choose a tool before they knew which view they needed, and switching meant typing the company in again.
RESULT
In progress: one Battlecard with a switch at the top, a competitor or its peers. Old Compare links will open the peers view.

same sources, same labels

EXP-002 · 12 OCT 2026FINDING

Only one large vendor's filings blame AI for job cuts

AIM
Check what companies' own documents say about AI and jobs.
OBSERVED
Oracle's 10-Q and 10-K name AI as a reason for workforce reductions. Block and Cloudflare say so in letters. HubSpot and Intuit deny it. Most say nothing.
RESULT
Published as Issue 015, a special edition: 10 signals, 29 sources, every one read in the document.
Read Issue 015 →

read the filing, not the headline

EXP-001 · 12 OCT 2026FIX

Correction: NapoleonCat's 235% wasn't a price rise

AIM
Check a tracker's claim we had tagged C (no document) in Issue 013.
OBSERVED
NapoleonCat's own blog shows $139 is its Expert plan and $465 is where custom Enterprise pricing starts.
RESULT
Two different plans, not an old and a new price. Corrected in Issue 014, with the original claim left visible.
Corrections log →

C means: go check

more soon. corrections go in the log.