About me

Marco Marzaduri: fast, visible web

I am Marco Marzaduri (Marco Roberto Maria Marzaduri) and I work in computing: cybersecurity, digital forensics and web development. Here I collect what it takes for a website to be truly fast, properly indexed, measured with method and able to get its emails delivered.

Every article starts from a concrete question, tackles it with an example and ends with a summary worth keeping at hand.

What I write about here

  • Technical SEO: indexing, canonicals, structured data.
  • Web performance: Core Web Vitals, caching, images.
  • Analytics & measurement: events, funnels, tests.
  • Email deliverability: SPF, DKIM, DMARC.

Report – Rai 3

In 2017 I appeared in the Italian investigative programme Report (Rai 3), in the episode “Un italiano a Panama”. The excerpt is on my YouTube channel.

My other sites

My professional website is marzaduri.com; my other notebooks are marzaduri.org, marzaduri.net, marcomarzaduri.com, marcomarzaduri.org and marcomarzaduri.net.

Topics

  • Technical SEO — Indexing, sitemaps, canonicals, structured data, hreflang and lossless migrations.
  • Web performance — Core Web Vitals, caching, CDNs, modern images and fonts, lean JavaScript and real-user data.
  • Analytics & measurement — Privacy-friendly analytics, events, funnels, A/B tests, KPIs and measurement errors.
  • Email deliverability — SPF, DKIM, DMARC, sender reputation, newsletters, consent and bounces.