Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Cover Page

v3.22.1
Cover Page
 12 Months Ended
Dec. 31, 2021
shares
Entity Addresses [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2021
Current Fiscal Year End Date --12-31
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-40394
Entity Registrant Name Similarweb Ltd.
Entity Incorporation, State or Country Code L3
Entity Address, Address Line One 121 Menachem Begin Rd.
Entity Address, City or Town Tel Aviv-Yafo
Entity Address, Postal Zip Code 6701203
Entity Address, Country IL
Contact Personnel Email Address ir@similarweb.com(Name, address, including zip code, and telephone number, including area code, of agent for service)
Title of 12(b) Security Ordinary shares, par value 0.01 NIS
Trading Symbol SMWB
Entity Common Stock, Shares Outstanding 74,845,441
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company true
Entity Ex Transition Period false
ICFR Auditor Attestation Flag false
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Amendment Flag false
Document Fiscal Year Focus 2021
Document Fiscal Period Focus FY
Entity Central Index Key 0001842731
Security Exchange Name NYSE
Business Contact  
Entity Addresses [Line Items]  
Entity Address, Address Line One 121 Menachem Begin Rd.
Entity Address, City or Town Tel Aviv-Yafo
Entity Address, Postal Zip Code 6701203
Entity Address, Country IL
Contact Personnel Name Or Offer
Country Region 972
City Area Code 3
Local Phone Number 544-7782