Spanish is declared seven times and never for the Americas
Seven of the nine vendors that declare a site language declare Spanish. Six write the bare code and one names Spain. No counted declaration in this register addresses Latin American Spanish, which is the larger audience by a wide margin. As of 2026-09-22.
| Vendor | Code as declared | Form of the code | The set it sits in |
|---|---|---|---|
| CapCut | es-ES | Region-tagged | 27 locales, every one but English region-tagged |
| Higgsfield | es | Bare language code | five bare codes |
| Kling AI | es | Bare language code | 20 bare codes |
| PixVerse | es | Bare language code | 13 bare codes |
| SceneMixer | es | Bare language code | 15 codes, one of them script-tagged |
| Synthesia | es | Bare language code | nine codes, one of them region-tagged |
| Vidu | es | Bare language code | nine bare codes |
Inclusion rule. Vendors declaring this language as a same-host hreflang alternate. A vendor serving the language without declaring it cannot be seen by this method and is not listed. Order. Alphabetical by vendor.
1The one tag names the smaller market
Spain has around forty-seven million people; Spanish-speaking Latin America has well over four hundred million. The single region tag in this column names Spain, which inverts the ratio the way the Portuguese tags do not.
It is the same shape of finding as the Belarus tag on Russian: where a vendor chose to be specific, it chose the market that is easier to name rather than the one that is larger. Both are recorded as written.
2A Mexican variant exists in the register and the rule discards it
One vendor declares es-mx among sixteen alternates, and fifteen of those resolve to language subdomains, so the rule counts one. That declaration is therefore not part of this page's table, and it is the only Latin American Spanish anywhere in the register.
That is worth stating plainly. The one vendor that named the larger market is also the one whose declarations the counting rule discards, which is a limitation of the rule and not a finding about the market.
3The variant question is the whole question for dubbing
Castilian and Latin American Spanish differ in pronunciation, vocabulary and in the second person, and audiences are known to reject the wrong one. Every voice figure in this register is silent about which variant it offers.
So on the language with the most consequential variant split of any in this column, the published record is six bare codes, one tag naming Spain, and one discarded tag naming Mexico.
4Sources
Each row was read from the vendor's own markup on 2026-09-22 and is kept in the register; what counts as a declaration is on how counted. The discarded set is read at its own entry.
Languages either side of this one in the index: Russian and Swedish. Every language any vendor declares is listed at one language at a time.
- Site languagesEvery alternate but English is a language-region pair; Russian is declared only as ru-BY and Chinese only as zh-TWhow the codes are written
- Site languages16 alternates declared: ar, br, cs, de, en, es, es-mx, fr, it, ja, ko, pl, pt, th, tr, zhraw count before the rule is applied
- Site languages5 languages: de, en, es, ja, kodeclared as same-domain alternates