Svilenković IT
Our own project, not client work. A small business usually thinks about its domain and email only when messages start landing in spam or the domain expires. On svilenkovicit.com we explained the parts that run in the background, without jargon, and added a tool that shows in a minute what a domain's DNS says about its email.
- Our own project
- September 2026
- 2 min read
- Astro 7
- DNS-over-HTTPS
- GSAP DrawSVG
- GSAP MotionPath
- Customer
- Our own project, no client
- Theme
- Domains, business email and website security
- Tool
- DNS record check over DNS-over-HTTPS
- Technologies
- Astro 7 · GSAP DrawSVG and MotionPath
- Privacy
- Analytics only with consent
- Mobile PageSpeed
- 100 out of 100, measured on September 28, 2026
- Website
- svilenkovicit.com
- Status
- Live on our domain, launched September 28, 2026
01 / 04
Sheets, as on a technical drawing
Svilenković IT is our site about the parts that run behind every business online: domain, DNS, business email, certificate and backups. Each page is a single sheet, as in an installation drawing, with a sheet number, scale and revision date, and answers one specific question, from why emails go to spam to what to do when a site is hacked.
The articles are written for the business owner, not the system administrator, and claims come with sources. Everything we describe, we also set up on the sites we build and maintain.
02 / 04
DNS record check in the browser
The DNS record check queries public DNS for NS, A and AAAA, MX, SPF, DKIM, DMARC, CAA and DNSSEC, and for each finding says in Serbian whether it is fine and what needs fixing. It also catches what is easy to miss by eye: an SPF record that needs more than the allowed ten DNS lookups, two SPF records on the same domain and DMARC tags that are no longer valid.
Queries go over DNS-over-HTTPS straight from the visitor's browser to Cloudflare or Google, whichever they choose. Neither the domain nor the result reaches our server, and the site's content security policy allows connections only to those two services.
03 / 04
Diagram of an email's journey
The home page has a diagram of one email's journey, from the domain through the DNS records and the mail server to the recipient's inbox. When it scrolls into view, GSAP draws it with the DrawSVG plugin, and then two genuine messages and one fake travel the route with the MotionPath plugin. The fake message fails the check and the recipient rejects it, so the diagram shows what SPF, DKIM and DMARC are for.
GSAP loads only when the diagram scrolls into view. Without the script, or with reduced motion turned on, the diagram appears already drawn in its final state, and each stop links to its own page.
04 / 04
Static site
The site is built in Astro 7 and published as prebuilt HTML pages, with fonts served from the same domain. Storage the site needs to work runs without consent, while analytics is turned on only if the visitor agrees. Inquiries are sent through the form on the Contact page, protected by a Cloudflare Turnstile check that loads only on submit.
On a phone
The same site, in your hand.
Most visitors come from phones, so the layout, buttons and images are arranged for the small screen first.
Questions
What clients ask.
Is Svilenković IT a client site?
No. It is our own site: we write and maintain the guides, and inquiries come in through the contact form on the site itself. It was not commissioned by any company.
Does the DNS record check send my domain to your server?
No. The browser sends the DNS queries directly to the public service you choose, Cloudflare or Google, and neither the domain nor the result reaches our server. Nothing is stored.
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