Guías de Verystep
Los tamaños, las reglas y las ideas detrás de las herramientas, explicados en lenguaje sencillo, una herramienta a la vez.
Cada guía está vinculada a una sola herramienta de este sitio. Responde a las preguntas que la herramienta no puede responder: qué tamaño exige realmente tu país, por qué existe la regla y dónde están los límites de la herramienta. Sin relleno y sin registro, y cada guía termina en la propia herramienta, para que puedas aplicar lo que acabas de leer.
Por ahora, las guías están publicadas en inglés. Esta página las reúne todas; los títulos y resúmenes de abajo son los originales en inglés.
Subnets and CIDR Without the Headache
A subnet looks like maths homework until you see it for what it is: one address, cut in two places.
How to Embed a Verystep Tool in WordPress (Self-Hosted)
Self-hosted WordPress is the easiest embed there is: one block, one paste, done.
How to Embed a Verystep Tool on WordPress.com (and the Plan Catch)
Same editor as self-hosted WordPress — but your plan decides whether the iframe survives.
How to Embed a Verystep Tool on a Wix Site
Wix gives you two ways in — paste the code, or just hand it the address.
How to Embed a Verystep Tool on Squarespace (Code Block, Core Plan or Higher)
The Code Block takes the snippet — but only if your plan lets code run.
How to Embed a Verystep Tool on Shopify (Custom Liquid)
For sellers, the useful embeds are the inspection and shipping calculators. Custom Liquid is how they get in.
How to Embed a Verystep Tool on Weebly or Square Online
Two editors share one name — and only one of them gates the embed behind a paid plan.
How to Embed a Verystep Tool in Webflow (Code Embed Element)
One element, one paste — provided your site plan turns custom code on.
How to Embed a Verystep Tool in Ghost (HTML Card)
Ghost is a writer’s platform that trusts writers with HTML. One card and you are done.
How to Embed a Verystep Tool on Blogger (HTML View or Gadget)
The oldest platform in this series is also one of the least fussy: free, and it takes the code.
How to Embed a Verystep Tool on Google Sites (Embed Code or By URL)
Free, built in, two tabs to choose from — with one height quirk worth knowing upfront.
How to Embed a Verystep Tool on Carrd (Embed Element, Pro Standard)
One-page sites live or die on what fits the page — an embedded tool earns its space.
How to Embed a Verystep Tool in Framer (Embed Component)
Framer gives you two modes for the same component — the snippet goes in one, the bare address in the other.
Paycheck Deductions Explained: Where the Money Goes Before Take-Home
The gap between your salary and your bank deposit isn't one tax. It's a queue — and the order of the queue changes the maths.
PMI Explained: What It Is and When It Drops Off (80% / 78%)
You pay the premium, the lender holds the protection — and there are two different doors out, at two different percentages. Most borrowers only ever hear about one of them.
Why Damaged QR Codes Still Scan: Error Correction Explained
The torn poster still scans, the scuffed label still scans. That’s not scanner magic — it’s spare data, built into the grid before the code was ever printed.
Hex, RGB, HSL — and the Contrast Ratio Your Text Needs
Three formats, one colour — and a fourth number, the contrast ratio, that none of the three will tell you. That’s the one your readers feel.
UUIDs Explained: v4, v7, and When the Version Matters
One digit in the middle of the string tells you how the whole ID was made — random roll, timestamp, or a hash of a name. Sometimes that digit is trivia. Sometimes it’s the design.
How GPA Is Calculated: Weighted, Unweighted and the 4.0 Scale
There's no registrar magic in a GPA. There's one weighted average — and the weights are the part everyone forgets.
BMI, BMR and TDEE: Three Numbers, Three Different Jobs
One is a ratio, one is an idling cost, one is a daily total. Compare them as if they were the same kind of number and every one of them will mislead you.
Time Zone Math: Why Your Meeting Keeps Landing at 3 A.M.
Nobody on your team is bad at arithmetic. The offset they memorised quietly expired — that's the whole story behind the 3 a.m. meeting.
JSON Without Tears: Structure, and the Five Errors Everyone Makes
One missing comma can break a whole API call — and the error message will blame the wrong line. Here's the tree underneath the text, and the five mistakes that account for nearly every broken file.
IBAN Explained: How to Read, Check and Trust an IBAN
It's the longest number on the invoice, and two of its digits exist purely to catch your typos. Here's how to read the rest.
Passphrases Beat Passwords: Length, Entropy and Breach Checks
Five ordinary words, chosen at random, outgun the cleverest 8-character scramble you've ever invented — and you won't forget them by Friday.
CBM and Volumetric Weight: How Freight Actually Charges You
Freight charges for space as much as for weight. Two formulas — and one divisor — decide which one your shipment pays for.
ADMT Is Not “AI Regulation”: What California’s Rule Actually Covers
California didn’t regulate “AI”. It regulated one narrow combination — and most tools people worry about never form it.
Your Photos Are Carrying GPS: How to Check and Strip EXIF Data
The picture shows a room, a view, a product. The file underneath it may also be carrying the address.
Shoe Size Conversion US / UK / EU / JP — and Why Brands Disagree
Your foot doesn’t change at the border. The label does — four systems counting the same foot four different ways.
SB 942’s Five Latent-Disclosure Fields, in Plain English
The disclosure your audience never sees is the one California asks for first — five facts, embedded in the file itself.
Ring Size Conversions: US, UK, EU and China Charts Explained
Four alphabets, one finger. Every ring chart on earth is secretly the same number — the millimetres around the inside of the band.
Cron Expressions Explained: Read and Write Any Schedule
Five fields, four symbols, one famous trap. That’s all of cron — and the trap is the part nobody warns you about.
EU AI Act Article 50: Provider or Deployer? The 10-Minute Version
Article 50 doesn’t start with how risky your AI is. It starts with who put it on the market, who runs it — and whether anyone told the person in front of it.
Passport & ID Photo Sizes by Country: mm, Inches and Pixels
Four sizes cover most of the world. The one that surprises people is China — and Canada’s is bigger than everyone else’s.
Remove a Photo Background Without Uploading It: How On-Device AI Works
The remover most people use asks for your photo first and answers second. There is another order: download the AI once, then keep every picture on your own machine.