Recording of deeds in Connecticut is done at the:

There is no centralized state capital recording office for Connecticut real property deeds; the Connecticut Secretary of State's office handles business entity filings, not real property land records, and directing a deed to the state capital would result in it being legally unrecorded and ineffective as constructive notice.

Connecticut does not have county recorders because the state abolished functional county government in 1960; there are eight historical counties in Connecticut, but they have no governmental offices, no county courthouses for recording purposes, and no county officials — making 'county recorder' a legally nonexistent entity in Connecticut.

There is no federal registry for recording private real property deeds in the United States; real property law is a matter of state and local law under the Tenth Amendment, and the federal government has no role in recording private conveyances between individuals, making this option fundamentally incorrect as a matter of constitutional structure.