Case study · This website

The site you’re on is the SEO case study.

We can’t name clients yet, so here’s a build we can open all the way. Every page is HTML before any script runs. Nothing loads from another origin. Each page describes itself in structured data (code that tells search engines what a page is about), and the build fails if the copy uses a hype word or an unmeasured number. The numbers on this page are measured in your browser.

Talk to Daniel

Rendering: Static HTML, prerendered at build
Scripts: Same origin only, no inline script
Data: One JSON-LD graph per page
Checks: The build fails on any guard

This page’s own structure, drawn at build from its HTML.

People read the top layer, crawlers follow the middle one and machines parse the bottom one.

10 headings · 51 links · 5 schema nodes

Build

Telemetry

Measured on your visit.

The sizes below were measured when this page was built. The timings come from your browser’s performance APIs (the browser’s built-in tools for timing a page), measured now, on your device. If a browser doesn’t report a metric, the field says so instead of guessing.

How each one is measured

html, css, js: gzip sizes of this page’s own files, measured at build
LCP: the largest-contentful-paint entry (the browser’s record of when the main content appeared)
CLS: layout-shift entries (the browser’s records of content jumping as the page loads) in session windows, ignoring shifts right after input
slowest input: the longest event duration per interaction
3rd-party: resources from any origin that isn’t this one
cookies: read from document.cookie

Page status and telemetry Build

html Build: 14.2 kB
css Build: 23.6 kB
js Build: 8.4 kB
3rd-party Build: 0
LCP: needs JS
CLS: needs JS
slowest input: needs JS
time to first byte: needs JS
transfer: needs JS
requests: needs JS
DOM elements: needs JS
cookies: needs JS
tier: needs JS

Build

Prerendering

Readable before any script runs.

Every page is rendered to complete HTML at build time by plain string functions. Scripts add motion and measurement, and run the two tools that call a server: the scanner and the scoping assistant. Turn JavaScript off and every word is still there. The meter below compares the words in the raw HTML with the words your browser rendered.

Parity Build

GET /work/this-site/status needs JStime to first byte needs JSbytes needs JS

Words readable without JavaScript

1,031 of needs JS

h1 count: 1
headings: 10
internal links: 49 · 27 unique

Build

Response headers

Nothing loads from anywhere else.

No font host, no outside script host, no analytics and no embeds. The content security policy (a list of rules for what a page may load and run) says so, and your browser enforces it. When scripts run, the panel fetches this page’s real response headers as it comes into view. Without them, it shows the policy this site ships.

curl -I Build

$ curl -I https://adjltechnology.com/work/this-site/
HTTP needs JS
content-security-policy:
  default-src 'self';
  script-src 'self';
  style-src 'self' 'unsafe-inline';
  img-src 'self' data:;
  font-src 'self';
  media-src 'none';
  connect-src 'self';
  frame-src 'none';
  object-src 'none';
  frame-ancestors 'none';
  base-uri 'self';
  form-action 'self';
  upgrade-insecure-requests
x-content-type-options: nosniff
referrer-policy: strict-origin-when-cross-origin
x-frame-options: DENY
permissions-policy: geolocation=(), microphone=(), camera=(), interest-cohort=()

default-src 'self': Nothing loads from anywhere else.
script-src 'self': No inline script and no eval.
style-src 'self' 'unsafe-inline': Inline style attributes, used for animation offsets.
img-src 'self' data:: Images from this site and inline data images.
font-src 'self': Fonts are self-hosted.
media-src 'none': No video or audio at all.
connect-src 'self': The live readouts fetch from this site and nowhere else.
frame-src 'none': No embeds.
object-src 'none': No plugins.
frame-ancestors 'none': Nobody can frame this site.
base-uri 'self': Relative links can’t be pointed elsewhere.
form-action 'self': A form can post only back to this site.
upgrade-insecure-requests: Any plain http request is upgraded.

Build

Structured data

Every page describes itself.

Each page carries one JSON-LD graph (one block of linked facts about the page, written for machines). The company, its founder, the site, the page and what the page is about, joined by stable IDs. The same IDs appear on every page, so a machine reading two pages knows they describe one company.

structured data Build

11 entities · 18 references · 1 block · ✓ parses

OrganizationADJL Technology#organization
PersonDaniel Laskowski#daniel
WebSiteADJL Technology#website
WebPageHow This Site Is Built for Search | ADJL Technology/work/this-site/#webpage
OrganizationADJL Capital#organization
BreadcrumbList/work/this-site/#breadcrumb
TechArticleThe site you’re on is the SEO case study./work/this-site/#article
/services/ai-engineering/#service/services/ai-engineering/#service · described on another page
/services/seo/#service/services/seo/#service · described on another page
/services/software/#service/services/software/#service · described on another page
/services/seo/audit/#service/services/seo/audit/#service · described on another page

Build

Machine-readable files

Files written for machines.

Each of these is generated from the built pages on every deploy, so none of them can describe a site that no longer exists.

sitemap.xml (dates from git history)
robots.txt (the file that tells crawlers what they may read)
llms.txt (a plain-text file written for AI tools to read)
llms-full.txt
A markdown copy of every page
build-report.json

machine-readable files Build

/robots.txtneeds JS0.5 kB
/sitemap.xmlneeds JS3.9 kB
/llms.txtneeds JS7.2 kB
/llms-full.txtneeds JS176.1 kB
/work/this-site/index.mdneeds JS6.7 kB
/build-report.jsonneeds JSneeds JS

Build

Build guards

Checks that fail the build.

These run on every deploy. If one fails, the previous version stays live. If you’re reading this, every check passed.

Guard	What it stops
check-css	A class with no style, or a style nothing uses
check-links	A link to a page or fragment that doesn’t exist, or a page nothing links to
check-claims	Hype words, and any number attached to a performance claim
check-contact	The contact address missing, unlinked or half-changed
check-motion	An animation module with nothing on any page to animate
check-markers	An authoring marker shipped as visible text
check-usage	British spellings, the wrong firm name, or a description that’s too long
check-voice	Copy drifting into the padded register we don’t write in
check-seo	A missing canonical, a second h1, a relative share image or broken structured data
check-provenance	A demo without a label saying whether it’s live
check-budget	A page over its byte budget, or a file nothing uses

npm run build Build

✓ check-css
✓ check-links
✓ check-claims
✓ check-contact
✓ check-motion
✓ check-markers
✓ check-usage
✓ check-voice
✓ check-seo
✓ check-provenance
✓ check-budget

Build

Motion tiers

Motion that knows when to stop.

Every animation here runs at one of three levels. Full on a desktop, lighter on phones and low-memory devices, and none at all if you’ve asked your system for reduced motion. Anything that loops pauses when it’s off screen. The Pause button stops all of it.

module weights · gz Build

core: 8.4 kB/ 24 kB
lattice: 9.8 kB/ 10 kB
machine: 2.6 kB/ 5 kB
ask: 4.0 kB/ 4 kB
pipeline: 1.5 kB/ 2.5 kB
replay: 2.6 kB/ 4 kB
leaders: 1.1 kB/ 3 kB
headers: 1.1 kB/ 1 kB ▲ over budget
palette: 2.8 kB/ 4 kB
view-machine: 1.1 kB/ 4 kB
view-source: 1.7 kB/ 4 kB
scan: 4.7 kB/ 10 kB
machine-kit: 4.2 kB/ 3 kB ▲ over budget
assistant: 3.8 kB/ 10 kB
exclude: 2.8 kB/ 3 kB
read: 0.9 kB/ 10 kB
intro: 0.7 kB/ 10 kB
site-pages: 0.6 kB/ 10 kB
typer: 0.5 kB/ 10 kB

Left out

What it doesn’t do.

No cookies. No trackers. No third-party scripts. A form can post only back to this site. Ask This Site is retrieval only, and no language model writes its answers. The one place a model runs is the scoping assistant on the start page. It’s called from a server function, so no key ever reaches your browser.

Built under

How the trading pipeline works

Start here

Tell us what’s slow, or what can’t be found.

One paragraph is plenty. Tell us what you want built, the step that costs the most, or the page that should rank and doesn’t. If you know why the obvious fix hasn’t worked, say that too.

Start a project

Email

daniel@adjlcapital.com

Email Daniel

Daniel reads and answers these himself, usually within a day or two. No sequence, no drip, and nothing sold to anyone.