Daniel Pertu - DEV Community

Daniel Pertu

Nov 6

The only security header our site sends is HSTS, and 74 of our 76 pages tell any origin it may read them

#webdev #security #nextjs #performance

5 min read

Daniel Pertu

Nov 6

We refuse 121,969 email domains at sign-up, and 2.4 MB of them never reach the browser

#javascript #typescript #node #webdev

6 min read

Daniel Pertu

Nov 6

One screen in our app has eight empty states, and four of them are the same emptiness for four different reasons

#react #nextjs #ux #webdev

6 min read

Daniel Pertu

Nov 6

Our getting-started checklist stores no progress, and three of its five steps are asking about different campaigns

#react #nextjs #ux #webdev

5 min read

Daniel Pertu

Nov 6

Our three clock components return null on the server on purpose, and one of the three has no importers

#react #nextjs #javascript #webdev

5 min read

Daniel Pertu

Nov 6

Five notes tour the big card on our homepage, and two of the four places a note can sit have never rendered

#react #nextjs #webdev #css

6 min read

Daniel Pertu

Nov 6

We honour reduced motion in JavaScript and ignore it in CSS, and the three elements that prove it are all on the homepage

#webdev #a11y #css #react

5 min read

Daniel Pertu

Nov 6

Thirty-two JavaScript files serve all 79 pages of our site, and two of them are the same 93,022 bytes of animation library under different names

#webdev #nextjs #performance #javascript

5 min read

Daniel Pertu

Nov 6

Our marketing homepage ships two canvas elements, and the animation loop they run stops itself when there is nothing to draw

#webdev #react #javascript #canvas

8 min read

Daniel Pertu

Nov 6

A directory in our repo lived for one hour and fifty-four minutes, and took the stylesheet's only reduced-motion rule with it when it went

#webdev #nextjs #css #typescript

6 min read

Daniel Pertu

Nov 6

We added seven pages, and six older ones now serve a link they say they have not been edited since September

#webdev #seo #nextjs #typescript

6 min read

Daniel Pertu

Nov 6

Four mascots share one 397-line parts file, and five pints are sitting in our homepage markup

#webdev #react #svg #css

8 min read

Daniel Pertu

Nov 6

Four surfaces carry one find, and exactly one of them has a switch

#electron #typescript #react #webdev

6 min read

Daniel Pertu

Nov 6

Five of our eight delete routes delete something you did not ask them to

#electron #typescript #node #webdev

5 min read

Daniel Pertu

Nov 6

61% of our HTML is inside script tags. Then I compressed it and found the real bill.

#nextjs #performance #react #webdev

6 min read

Daniel Pertu

Nov 6

Our page template is not allowed to write prose. I diffed all 15 generated pages and found six sentences it writes.

#seo #typescript #nextjs #webdev

6 min read

Daniel Pertu

Nov 6

I counted every internal link on our 38 page site. 64% of them are the footer.

#webdev #seo #nextjs #react

6 min read

Daniel Pertu

Nov 6

I said our typed pages could not promise unlimited searches. Thirteen of them do.

#typescript #webdev #seo #nextjs

7 min read

Daniel Pertu

Nov 6

Two hubs for the same subject in two Englishes, and the footer that stays British on both

#seo #webdev #nextjs #writing

1

5 min read

Daniel Pertu

Nov 6

Twelve files in one commit changed by exactly one line, and ten of those lines were the word seven

#typescript #nextjs #refactoring #webdev

1

5 min read

Daniel Pertu

Nov 6

291 employer profiles, 301 citations, and the 44 that record finding nothing

#typescript #seo #webdev #writing

1

5 min read

Daniel Pertu

Nov 6

Our two apps hand a session to each other in a URL fragment, and the point is the server that never sees it

#nextjs #auth #webdev #security

1

5 min read

Daniel Pertu

Nov 6

Nine Dutch pages declare an English twin, and the test proves it by reading the twin's source file

#nextjs #seo #i18n #testing

4 min read

Daniel Pertu

Nov 6

Twenty-four of our twenty-five video compositions declare themselves one frame long, and one of them means it

#react #remotion #video #typescript

6 min read

Daniel Pertu

Nov 6

We deleted our only dynamic content route to get fourteen folders, and not one URL changed

#nextjs #seo #webdev #architecture

4 min read

Daniel Pertu

Nov 6

29 API routes, not one CORS header in any of them, and the only browser that needs them is our own app

#nextjs #webdev #security #api

1

6 min read

Daniel Pertu

Nov 6

Fifty pages about fifty tests, 210 sources, and the 29 tests we refused to write a page about

#seo #nextjs #testing #webdev

1

5 min read

Daniel Pertu

Nov 6

491 FAQ questions in our markup, and 461 of them are the only question on their page

#seo #nextjs #webdev #javascript

6 min read

Daniel Pertu

Nov 6

Fourteen branches, 132 new pages, and 46 links written to pages that did not exist yet

#git #testing #seo #nextjs

4 min read

Daniel Pertu

Nov 6

One of our 516 sitemap entries has a date on it, and an hourly job is why the other 515 do not need one

#nextjs #seo #webdev #typescript

6 min read

Daniel Pertu

Nov 5

Sixty-three of our pages are one 208-line component, and seven of the eight routes behind them are one-liners

#nextjs #react #seo #webdev

1

6 min read

Daniel Pertu

Nov 5

72,683 lines of TypeScript with one any in them, and two compiler flags that would add 455 errors

#typescript #nextjs #codequality #javascript

1

6 min read

Daniel Pertu

Nov 5

Zod does two opposite jobs in our app, and the call shape tells you which one

#typescript #zod #nextjs #ai

1

6 min read

Daniel Pertu

Nov 5

A mistyped URL on our site gets the login page instead of our 404, and one capital letter changes which

#nextjs #webdev #seo #security

1

6 min read

Daniel Pertu

Nov 5

Every page on our site is two clicks from home, and 21 of them only because of the footer

#seo #nextjs #python #webdev

1

6 min read

Daniel Pertu

Nov 5

Next 16 prints no bundle sizes, so I measured ours three ways and found 198 KB of analytics

#nextjs #webperf #javascript #performance

1

6 min read

Daniel Pertu

Nov 5

Our WebSocket server is also a three-route HTTP server, and the only open route is the one that counts the phones in the room

#node #webdev #devops #architecture

1

6 min read

Daniel Pertu

Nov 5

Our developer-only page is a prerendered 404 served from the edge cache, and the only part of it that shipped is its name

#nextjs #react #performance #webdev

1

5 min read

Daniel Pertu

Nov 5

One page on our site types 2026 sixty-nine times, and the plan for January is a new URL rather than an edit

#seo #nextjs #webdev #typescript

1

5 min read

Daniel Pertu

Nov 5

There is not one pixel size on our big screen: 128 container-query values, and the same component is a card on our homepage

#css #react #frontend #webdev

1

5 min read

Daniel Pertu

Nov 5

Our break-even number is a loop over sixty integers, because the line it sits on has a kink in it

#typescript #react #testing #webdev

1

6 min read

Daniel Pertu

Nov 5

Our app opens two Postgres pools, and exactly one method crosses from the first to the second

#postgres #nextjs #serverless #webdev

1

5 min read

Daniel Pertu

Nov 5

34 of our 38 sitemap dates are wrong, and every one of them was right when it was typed

#seo #nextjs #webdev #git

1

5 min read

Daniel Pertu

Nov 5

Our 35 cached pages entered the edge over eight hours, one visitor at a time, and 16 of them in the same minute

#nextjs #performance #webdev #http

1

4 min read

Daniel Pertu

Nov 5

I checked all 40 outbound links on our site, and the dead one is inside our privacy policy

#webdev #seo #nextjs #testing

5 min read

Daniel Pertu

Nov 5

1,097 files in our app's data folder are mode 0600 and 19 are 0644, and the 19 are the ones with secrets in them

#electron #node #security #macos

5 min read

Daniel Pertu

Nov 5

Our Mac app's code signature says its name is Electron, and its launcher is byte for byte the one in node_modules

#electron #macos #security #devops

5 min read

Daniel Pertu

Nov 5

Our Mac app ships 32 Info.plist keys, 21 of them untouched Electron, and four of those ask for a camera

#electron #macos #node #devops

5 min read

Daniel Pertu

Nov 5

One page on our site holds 461 of its 516 URLs, 154 KB of HTML, and its biggest section is the condition we shipped last

#seo #nextjs #webdev #architecture

5 min read

Daniel Pertu

Nov 5

Three promises hold our splash screen, a font error counts as loaded, and the session is deliberately not one of them

#reactnative #expo #typescript #architecture

6 min read

Daniel Pertu

Nov 5

Our menu reader may never say a dish is good, and the photo it reads is handed over in a module variable

#reactnative #expo #typescript #ux

6 min read

Daniel Pertu

Nov 5

Our Android app is also a 1,176 byte HTML file, and exactly one file in the repo is web only

#reactnative #expo #webdev #a11y

5 min read

Daniel Pertu

Nov 5

Six files in our Next app assert they are static, 41 declare they are not, and 14 of the 41 have no GET to make static

#nextjs #webdev #performance #typescript

5 min read

Daniel Pertu

Nov 5

512 of our 516 pages carry a breadcrumb trail, and not one of them names the page you are on

#nextjs #seo #webdev #a11y

5 min read

Daniel Pertu

Nov 5

Forty-six research dossiers, 702,000 words, 3,750 source URLs, and three that shipped as articles instead of products

#webdev #documentation #writing #productivity

5 min read

Daniel Pertu

Nov 5

We pin the nine dependencies nobody can see and let the forty-two in the browser float

#javascript #webdev #nextjs #node

5 min read

Daniel Pertu

Nov 5

Six of our URL families return a real 404 and the seventh returns 200, because it reads the session

#nextjs #webdev #seo #react

4 min read

Daniel Pertu

Nov 5

React 19.2, zero useOptimistic, and five Suspense boundaries on our homepage that nobody wrote

#react #nextjs #webdev #typescript

4 min read

Daniel Pertu

Nov 5

Zero ts-ignore comments and 111 as-unknown-as casts, and 64 of them are one missing type

#typescript #webdev #testing #react

4 min read

Daniel Pertu

Nov 5

Thirty-five eslint-disable comments, and no ESLint anywhere in the repository

#typescript #react #webdev #nextjs

4 min read

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