Frequently asked questions

vesselspecification.com is a public vessel-reference experiment that publishes structured offshore and maritime vessel records compiled from owner and shipyard documents, class registers, public sources and commercial reference databases, reviewed by people.

No. It is not an official register, class certificate, live AIS service, or operational decision system. Verify important details with owners, operators, class, flag, or another primary source.

It is built for maritime brokers, owners, researchers, commercial teams, and public search visitors who need to identify vessels, compare public particulars, and understand source posture.

Records are assembled from public registers (such as IACS), class records, owner, operator and shipyard documents, fleet pages, trade press, and commercial reference databases that are not individually named. Values show their source where one is recorded; source labels show provenance, not endorsement.

AI helps find source material, extract candidate fields, compare conflicts, and prepare records for human review. AI output is not a source, and weak evidence should stay unpublished or visibly blank.

Blank fields mean a reviewed public-safe value has not been published. Do not infer a missing value from nearby fields, similar vessels, or another source without checking it directly.

Records are reference snapshots, not live status feeds. Vessel names, flags, owners, managers, class status, and capabilities can change after publication.

Search by vessel name or IMO on the vessel index. IMO is the stable identity key; names are searchable labels and may change over time.

Yes. Use Compare to place two to five vessels in one table and scan dimensions, capacity, propulsion, DP, FiFi, deck, crane, accommodation, and source-review posture.

No. The records are for public reference and discovery. Do not use them for navigation, safety, chartering, engineering, class, compliance, or other operational decisions without independent verification.

No public bulk download or API is offered. The public site is free to read, but bulk data products, API access, accounts, and paid services are not launched.

Send the vessel name or IMO, the field that looks wrong, the corrected value, and a source for it to [email protected]. A person reviews corrections before publication.

Owners, shipyards and class registers rank first, and a lower tier is not meant to override a higher one. A value can still differ from the owner's figure while a disagreement is not yet settled, when the figures use a different basis, or when the owner's page is not yet matched to the vessel. The source ranking on the About page explains the tiers, what “corroborated” means and how corrections are checked.

Yes. Use the contribution page or email a public source link, spec sheet, fleet booklet, or other document you may share to the data address with the vessel name and IMO.

Legal, privacy, copyright, database-rights, and takedown notices should be sent to [email protected]. The takedown page explains the current notice path.