Dive into our data, search now!

We offer robust APIs and data services for domainers, data crawlers, security teams and many more.

384.5 M

Domains known to webXtrend

9.4 M

New domains in the last 30 days

62.6 M

Social media profiles detected

arqly.dev

arqly.dev serves a website of its own over HTTPS and under www. It answers on IPv4 only, with a valid TLS certificate.

1,982,209 other domains share an IP address with it.

The most recent crawl returned the page title “Arqly — System design you practise, not read about” and 83,152 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .dev Statistics for all domains we know under this TLD.
Has website yes A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record no The domain has an MX record.
External redirect no The domain redirects to another domain.
Redirect to https yes The domain redirects to https.
Redirect to www. yes The domain redirects to www.domain.
Only with www. no The domain can only be reached with the subdomain "www".
Only DNS, no website no There are no A or AAAA records in DNS.
IP-Address only IPv4 Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate valid Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 1,982,209 Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "arqly.dev"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

Similar websites

Website Similarity
Chinilla - The system design simulator that actually runs your ideas
Drag in services, queues, and databases. Wire them up. Watch real packets flow through your design and see exactly where it breaks under load. Free forever,...
81 %
Anneal | The Engineering OS for Complex Hardware Development
Anneal - The Engineering OS for Complex Hardware Development
81 %
AetheriusDB — High-Performance Data Engine
AetheriusDB — one engine for SQL, vector search, graph traversal, and time-travel, with your logic running inside the database.
81 %
Practice system design with interactive architecture diagrams
ArchOS helps engineers master system architecture with guided system design problems, flow simulation, collaborative review, and a freeform architecture studio.
81 %
ChaosBench — System Design Interview Simulator
The system design interview simulator for Mid, Senior, and Principal engineers — build, break, and defend your architecture against an AI that argues back.
81 %
Black Byte Labs
A boutique engineering & cyber security studio for AI, cloud, and data systems: the deep-tech work other teams quote, stall on, or walk away from.
80 %
Sean Colon | Systems & Security
Sean Colon builds secure web apps, local automation, runtime systems, and security research artifacts with visible proof and a military cyber track.
80 %
Reqflow. Go from confused to confident on system design and FDE
Engineering tracks that teach by running real artifacts. Trace requests through Instagram and Uber architectures, and study FDE with cited lessons. No slides.
80 %
DHSeaDev — Chrome Extension & Browser Systems Engineering
Independent software engineer building Manifest V3 Chrome extensions and browser-native systems — local-first, automated-tested, zero telemetry. Portfolio.
80 %
RuntimeVault — Ground truth for AI coding agents
RuntimeVault captures the full runtime state the instant an error fires — stack, variables, network, DOM — and hands it to Claude Code, Cursor, or any MCP-co...
80 %
ArchStep
Executable architecture documentation — write a diagram, watch it run.
80 %
Cursa — Watch engineering systems work
Step through code line by line, trace requests across distributed systems, and watch neural networks learn—one state change at a time.
80 %
SystemLore — Distributed systems simulation game
Learn distributed systems fundamentals through a simulation game: keep services alive through traffic spikes, outages, queues, caches, shards, and failover d...
79 %
Byter Home
Byter helps developers build engineering judgment with adaptive coding practice, AI duels, and transparent subscription controls.
79 %
The Architect's Room — System Design, Reasoned Out Loud
System design from a rookie's POV — start knowing nothing and reason your way up to the staff-engineer answer: the questions, tradeoffs, and decisions, not a...
79 %
Kensa — specialist AI code review on your machine
Specialist AI code review that runs locally on your desktop, using your own AI provider CLIs. Graded findings, no hosted runner. macOS, Linux, Windows.
79 %
Home - CodeSpy
CodeSpy breaks down system design, Spring AI, and distributed systems the way we wish someone had explained them to us — with real diagrams, real code, and no
79 %
Akshit Garg — Full-Stack Developer
Akshit Garg — Full-Stack Developer. Case studies: Authentic, a self-hosted multi-agent AI content pipeline with a video studio arm; and NutriRhythm, a nutrit...
79 %
BeecodeGuy — Field notes from a product engineer
Beezay (BeecodeGuy | BrainFuelByBijay) writes and ships what he’s learned building mobile apps, architectures, and products that have to work in production.
79 %
AIxDT: Design Thinking, with an AI co-pilot
AIxDT turns your interviews, field notes, and raw research into a PRD through a full, factual Design Thinking process: empathize, define, ideate, and ship. E...
79 %

Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer Let's Encrypt
Valid from 9/13/2026
Valid to 12/12/2026
Time until expiry 54 days

Last successful crawl

Title Arqly — System design you practise, not read about
Description Practise system design stage by stage against a simulator that runs your own diagram, and build the primitives — Kafka, Raft, LSM trees — in animated, interactive scenes.
Content-Length 83,152 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address Last updated
216.198.79.1 5/19/2026
Name server Last updated
ns21.domaincontrol.com 5/19/2026
ns22.domaincontrol.com 5/19/2026

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

216.198.79.1 1,982,209 domains · here since 9/15/2026
Domain On this IP since
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz.uk 10/9/2026
zzzzzly.online 9/22/2026
zzzzrakesh.me 9/19/2026
zzzznayu.ru 9/19/2026
zzzzdevelopment.com 10/13/2026
zzzzas.app 10/12/2026
zzzz.yt 9/19/2026
zzzz.lt 9/15/2026
zzzxc.com 10/9/2026
zzztools.com 9/20/2026
zzzsunny.space 9/13/2026
zzzril.art 9/22/2026
and 1,982,196 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.