arbitrum.io draws its headings in FK Screamer Legacy and its body text in Aeonik. It uses 2 fonts in all. We measured it on November 4, 2026.
The fonts arbitrum.io draws
| Font | Used for | Share of its custom-font text | Licence | How common |
|---|---|---|---|---|
| Aeonik | Body text | 97.5% | Commercial | 11 of 845 sites (rank =11) |
| FK Screamer Legacy | Headings | 2.5% | Not verified as obtainable | – |
Share is how much of the page’s custom-font text each font draws. System fonts and icon fonts are never counted. Each site was opened twice in a real browser and Chrome was asked which font file drew each piece of text. We count a font for a site only if both runs saw it and it drew at least 2% of the site’s custom-font text. The full method.
Can I use the same fonts?
- Aeonik is sold under a commercial licence by CoType Foundry. Licence it from CoType Foundry; copying the file from a site that uses it is not a licence.
- FK Screamer Legacy: we could not verify that this typeface can be licensed, so we neither recommend it nor link a source.
Free fonts in a similar style
If you cannot license Aeonik, these free fonts are in the same style (sans serif) and real sites use them: Inter (126 sites), Roboto (43 sites), Open Sans (26 sites), Geist (18 sites). A similar style is not the same typeface, so compare them side by side before you commit.
arbitrum.io among crypto and web3 sites
arbitrum.io is one of the 33 crypto and web3 sites we measured. Across them, Inter is the most used font you can get, on 9 of the 33 (27%). All the fonts crypto and web3 sites use.
What pairing does arbitrum.io use?
FK Screamer Legacy for headings with Aeonik for body text does not repeat on another analyzed site, so there is no shared pairing to show. Pairings that do repeat.
Other crypto and web3 sites we measured
- algorand.com Inter, Aeonik
- avax.network Aeonik
- aave.com Aave Repro
- binance.com Proxima Nova, Binance Nova
- bitcoin.org Titillium
- cardano.org Chivo
See the fonts on all 845 sites.
FAQ
What font does arbitrum.io use?
arbitrum.io draws its headings in FK Screamer Legacy and its body text in Aeonik. It uses 2 fonts in all: Aeonik, FK Screamer Legacy. We measured it on November 4, 2026.
Is FK Screamer Legacy free?
We could not verify that FK Screamer Legacy can be licensed, so we do not state a licence.
What font pairing does arbitrum.io use?
FK Screamer Legacy for headings and Aeonik for body text. It does not repeat on another analyzed site.
Can I use the same fonts as arbitrum.io on my own site?
Only if the licence allows it. Free and open-source fonts can be used freely. Commercial fonts need your own licence, even though you can see the file on arbitrum.io. Each font's licence is on this page, from its source.
How do you know which font arbitrum.io uses?
We opened arbitrum.io in a real browser and asked Chrome which font file drew each piece of text, twice in separate sessions. A font counts only if both runs saw it and it drew at least 2% of the site's custom-font text.
Can I check a different website?
Yes. Paste its address into the free font finder.