Daniel Pertu - DEV Community

Daniel Pertu

Nov 14

I pressed Tab through all 5,495 stops on our site: the order is perfect and 373 of them show no focus ring

#a11y #css #webdev #tailwindcss

6 min read

Daniel Pertu

Nov 14

Our public pages hold 5,693 stacking contexts and nine z-indexes, and the drawings that make most of them ignore z-index completely

#css #webdev #frontend #svg

5 min read

Daniel Pertu

Nov 14

Our stylesheet declares the same 72 variables twice, and the second copy hides behind a browser sniff dressed as a feature query

#css #webdev #tailwindcss #frontend

5 min read

Daniel Pertu

Nov 14

Chrome composites 10 layers on our static FAQ page, and an invisible word is responsible for three of them

#webdev #performance #css #chrome

5 min read

Daniel Pertu

Nov 14

First paint takes 368ms at my desk and 9.2 seconds on a slow link, and 3.7 of those seconds are our own font preloads

#performance #webdev #webperf #nextjs

6 min read

Daniel Pertu

Nov 14

Thirty-three useEffect calls in 72,683 lines, and the same six lines are written out four times

#react #nextjs #webdev #refactoring

6 min read

Daniel Pertu

Nov 14

I pressed select-all and copy on all 79 of our pages: 393 KB of words and 5.3 MB of markup

#webdev #css #a11y #html

4 min read

Daniel Pertu

Nov 14

I grepped all 38 pages of our site for accessibility: one h1 each, 1,091 links with names, and a focus ring at 1.82:1

#a11y #webdev #nextjs #css

6 min read

Daniel Pertu

Nov 14

37 components in our Expo app, and the one nothing has ever imported was written in the first commit

#reactnative #typescript #expo #refactoring

6 min read

Daniel Pertu

Nov 14

Our activity log paints three lines green that mean nothing happened, and the word the highlighter really wants only exists on our homepage

#electron #react #webdev #typescript

5 min read

Daniel Pertu

Nov 14

Reading a country out of a locale string is 16 lines, because de-DE-u-ca-gregory contains Canada and Intl.Locale throws on what Android hands you

#typescript #reactnative #i18n #expo

6 min read

Daniel Pertu

Nov 14

Our 76 pages print to 496 sheets of A4, and the plan we recommend is invisible on one of them

#css #webdev #a11y #frontend

6 min read

Daniel Pertu

Nov 14

Our CDN compresses every page with brotli quality 3, and plain gzip wins on 20 of our 79 pages

#webdev #performance #nextjs #http

5 min read

Daniel Pertu

Nov 14

Our contact form runs four checks in the browser and seven on the server, and the only check both of them do is the one they disagree about

#webdev #react #nextjs #validation

4 min read

Daniel Pertu

Nov 14

We deleted a 308-line unlock dialog and replaced it with a scroll and three pulses

#react #css #webdev #typescript

6 min read

Daniel Pertu

Nov 14

A document we deleted in September is cited 73 times in our code, and the file explaining the citation convention is one of the citers

#documentation #typescript #architecture #webdev

1

5 min read

Daniel Pertu

Nov 14

Our sitemap lists 38 URLs, our app directory serves 40, and the robots rule protecting one of the other two has a trailing slash

#seo #nextjs #webdev #typescript

5 min read

Daniel Pertu

Nov 14

Our image optimiser offers 15 widths and one quality, and answers an AVIF-capable browser with JPEG

#nextjs #webdev #performance #images

4 min read

Daniel Pertu

Nov 14

Thirty of our 65 providers were £5 cheaper, and deleting that rule removed 67 tests

#typescript #testing #webdev #pricing

6 min read

Daniel Pertu

Nov 14

Our Expo app has 42 accessibility labels and three hints, and the hardest one was Chrome refusing to hide a focused element

#reactnative #a11y #typescript #expo

7 min read

Daniel Pertu

Nov 14

Every photo on our landing page is a JPEG with a .webp extension, and the CDN announces it as image/webp

#webdev #performance #nextjs #images

4 min read

Daniel Pertu

Nov 14

Our welcome screen is covered by a CSS rule that deletes itself after three seconds

#css #nextjs #react #webdev

5 min read

Daniel Pertu

Nov 14

Our article type says "keep it honest" above the reading time, and all eight of them are wrong in the same direction

#webdev #nextjs #typescript #writing

4 min read

Daniel Pertu

Nov 14

A readable cookie mirrors our httpOnly session, so a static page can offer My account

#nextjs #webdev #typescript #react

5 min read

Daniel Pertu

Nov 14

Our 76 pages read at grade 6.9, and the three hardest are the three no test covers

#webdev #writing #testing #seo

8 min read

Daniel Pertu

Nov 14

Our 38 page site sends exactly one security header, and we did not write it

#webdev #security #nextjs #vercel

5 min read

Daniel Pertu

Nov 14

Eight things our app refuses to do when a dependency is missing, and six it does anyway

#typescript #architecture #webdev #nextjs

6 min read

Daniel Pertu

Nov 14

We cut sign-up to two fields, and the field we deleted had a reader three emails away

#webdev #typescript #testing #ux

4 min read

Daniel Pertu

Nov 14

We replaced GitHub sign-in with Microsoft, and the provider id in our code is neither of those words

#webdev #typescript #oauth #nextjs

5 min read

Daniel Pertu

Nov 14

Our delete-my-data list clears eight keys off the phone, and the product cache moved to v3 without it

#reactnative #typescript #privacy #testing

5 min read

Daniel Pertu

Nov 13

LCP lands in the same millisecond as first paint on all 76 of our pages, and our only layout shift is 58px of header

#performance #webdev #nextjs #react

1

6 min read

Daniel Pertu

Nov 13

1,734 structured data nodes, zero invalid properties, and half of them describe rich results that no longer exist

#seo #json #webdev #python

1

6 min read

Daniel Pertu

Nov 13

88 commits, one branch, no CI, and 45 per cent of every line ever added is a generated folder

#git #webdev #codequality #productivity

1

8 min read

Daniel Pertu

Nov 13

I loaded all 76 of our pages at 320px: nothing scrolls sideways, and 1,308 elements hang over the edge

#css #a11y #webdev #frontend

1

6 min read

Daniel Pertu

Nov 13

165 HTML errors across our 76 pages, and deleting one attribute removes 152 of them

#html #a11y #webdev #nextjs

1

7 min read

Daniel Pertu

Nov 13

Every URL in our sitemap says 3 October, and 30 of the 76 pages changed after that

#nextjs #seo #webdev #typescript

7 min read

Daniel Pertu

Nov 13

866 link tags across 79 pages, and not one of them is a preconnect to the only other host we talk to

#webdev #performance #nextjs #html

4 min read

Daniel Pertu

Nov 13

Our 79-page site is written in 98 distinct characters, and six of them are an empty table header

#webdev #html #typography #a11y

5 min read

Daniel Pertu

Nov 13

Our Permissions-Policy header forbids three of the browser's 80 features, and the other 77 include USB

#webdev #security #browsers #performance

5 min read

Daniel Pertu

Nov 13

Every one of our 79 pages is two clicks from the homepage, and 24 of them cannot be reached by reading

#seo #webdev #html #a11y

5 min read

Daniel Pertu

Nov 13

The accessibility engine was already in our node_modules, reached by a linter that cannot run

#a11y #webdev #testing #nextjs

5 min read

Daniel Pertu

Nov 13

We preload 52 KB of our brand typeface on every page, and the browser renders the system font

#css #webdev #tailwindcss #fonts

1

6 min read

Daniel Pertu

Nov 13

Our 38 page product site downloads one image file, it is 550 bytes, and there is not a single screenshot on it

#webdev #performance #nextjs #a11y

5 min read

Daniel Pertu

Nov 13

Our third most used colour is #a3a3a3, 138 times, and the Tailwind we install does not have it any more

#css #tailwindcss #webdev #typescript

5 min read

Daniel Pertu

Nov 13

I curled the 49 outbound links on our site: 30 answered 200, and the four worth fixing were not among the 19 failures

#webdev #seo #typescript #testing

6 min read

Daniel Pertu

Nov 13

Seven HTML emails in our product, the same 560 pixel table typed seven times, and the escaper defined twice

#typescript #webdev #email #node

7 min read

Daniel Pertu

Nov 13

Our sitemap tells Google 32 pages changed on 14 September, and the edge cache says the HTML was built on 18 October

#seo #nextjs #webdev #typescript

6 min read

Daniel Pertu

Nov 13

Every title on our 38 pages is under 60 characters, and three of them are not if you count the HTML

#seo #nextjs #testing #webdev

5 min read

Daniel Pertu

Nov 13

A test in our pricing package fails if any price sentence says approximately, and the banned words include the name of our own currency

#typescript #stripe #testing #webdev

5 min read

Daniel Pertu

Nov 13

Our recipe index prints the word eight 29 times without typing it, and our homepage description still says seven

#typescript #nextjs #webdev #seo

5 min read

Daniel Pertu

Nov 13

Our related-guides block gave every link to the A names, so 61 of 211 pages received none

#webdev #typescript #seo #algorithms

5 min read

Daniel Pertu

Nov 13

Google indexed /Games, a URL that 404s, so our proxy now lowercases the path before anything else

#nextjs #seo #webdev #typescript

4 min read

Daniel Pertu

Nov 13

Our JavaScript chunks were indexed because robots.txt blocked them, and the fix was to let crawlers in

#nextjs #seo #webdev #typescript

3 min read

Daniel Pertu

Nov 13

The hreflang rule we shipped last week was wrong, so 13 of our 24 localised pages now declare none

#webdev #seo #typescript #testing

6 min read

Daniel Pertu

Nov 13

We deleted a true line from our comparison pages because the rival could say it too

#webdev #typescript #testing #writing

1

6 min read

Daniel Pertu

Nov 13

Our new partnership page quotes two percentages, and a test reads the email we already sent

#webdev #typescript #testing #seo

1

5 min read

Daniel Pertu

Nov 12

I spell-checked 123,831 words across our 76 pages: no misspellings, and the only inline lang attribute is Japanese

#webdev #a11y #writing

1

8 min read

Daniel Pertu

Nov 12

I checked our privacy notice against the code, promise by promise, and found two missing processors

#privacy #typescript #webdev #legal

1

8 min read

Daniel Pertu

Nov 12

Nine ways this app says "only once", from one request to for ever

#postgres #typescript #webdev #architecture

1

7 min read

Daniel Pertu

Nov 12

Our daily quota went from 10,000 to 60,000, and only four of the thirteen lines I changed were code

#typescript #webdev #codequality #documentation

1

6 min read

1 Week Community Wellness Streak

Writing Debut

Want to connect with Daniel Pertu?