diff --git a/apps/contract-verification/src/app/Verifiers/BlockscoutVerifier.ts b/apps/contract-verification/src/app/Verifiers/BlockscoutVerifier.ts
index a05a7b1229..aca3c62cc1 100644
--- a/apps/contract-verification/src/app/Verifiers/BlockscoutVerifier.ts
+++ b/apps/contract-verification/src/app/Verifiers/BlockscoutVerifier.ts
@@ -1,4 +1,4 @@
-import { EtherscanVerifier } from "./EtherscanVerifier";
+import { EtherscanVerifier } from './EtherscanVerifier'
 
 export class BlockscoutVerifier extends EtherscanVerifier {
   constructor(apiUrl: string) {
@@ -7,7 +7,7 @@ export class BlockscoutVerifier extends EtherscanVerifier {
   }
 
   getContractCodeUrl(address: string): string {
-    const url = new URL(`address/${address}`, this.explorerUrl)
+    const url = new URL(this.explorerUrl + `/address/${address}`)
     url.searchParams.append('tab', 'contract')
     return url.href
   }
diff --git a/apps/contract-verification/src/app/Verifiers/EtherscanVerifier.ts b/apps/contract-verification/src/app/Verifiers/EtherscanVerifier.ts
index 2a5e222dab..09c631ec1d 100644
--- a/apps/contract-verification/src/app/Verifiers/EtherscanVerifier.ts
+++ b/apps/contract-verification/src/app/Verifiers/EtherscanVerifier.ts
@@ -45,7 +45,7 @@ export class EtherscanVerifier extends AbstractVerifier {
       body.constructorArguements = submittedContract.abiEncodedConstructorArgs
     }
 
-    const url = new URL('api', this.apiUrl)
+    const url = new URL(this.apiUrl + '/api')
     url.searchParams.append('module', 'contract')
     url.searchParams.append('action', 'verifysourcecode')
     if (this.apiKey) {
@@ -78,7 +78,7 @@ export class EtherscanVerifier extends AbstractVerifier {
 
   // TODO retry with backoff in case this throws error
   async checkVerificationStatus(receiptId: string): Promise<VerificationStatus> {
-    const url = new URL('api', this.apiUrl)
+    const url = new URL(this.apiUrl + '/api')
     url.searchParams.append('module', 'contract')
     url.searchParams.append('action', 'checkverifystatus')
     url.searchParams.append('guid', receiptId)
@@ -121,7 +121,7 @@ export class EtherscanVerifier extends AbstractVerifier {
   }
 
   async lookup(contractAddress: string, chainId: string): Promise<LookupResponse> {
-    const url = new URL('api', this.apiUrl)
+    const url = new URL(this.apiUrl + '/api')
     url.searchParams.append('module', 'contract')
     url.searchParams.append('action', 'getabi')
     url.searchParams.append('address', contractAddress)
@@ -152,7 +152,7 @@ export class EtherscanVerifier extends AbstractVerifier {
   }
 
   getContractCodeUrl(address: string): string {
-    const url = new URL(`address/${address}#code`, this.explorerUrl)
+    const url = new URL(this.explorerUrl + `/address/${address}#code`)
     return url.href
   }
 }
diff --git a/apps/contract-verification/src/app/Verifiers/SourcifyVerifier.ts b/apps/contract-verification/src/app/Verifiers/SourcifyVerifier.ts
index c5a73dbaaf..91ac341d03 100644
--- a/apps/contract-verification/src/app/Verifiers/SourcifyVerifier.ts
+++ b/apps/contract-verification/src/app/Verifiers/SourcifyVerifier.ts
@@ -65,7 +65,7 @@ export class SourcifyVerifier extends AbstractVerifier {
 
     console.log(body)
 
-    const response = await fetch(new URL('verify', this.apiUrl).href, {
+    const response = await fetch(new URL(this.apiUrl + '/verify').href, {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json',
@@ -98,7 +98,7 @@ export class SourcifyVerifier extends AbstractVerifier {
   }
 
   async lookup(contractAddress: string, chainId: string): Promise<LookupResponse> {
-    const url = new URL('check-all-by-addresses', this.apiUrl)
+    const url = new URL(this.apiUrl + '/check-all-by-addresses')
     url.searchParams.append('addresses', contractAddress)
     url.searchParams.append('chainIds', chainId)
 
@@ -128,7 +128,7 @@ export class SourcifyVerifier extends AbstractVerifier {
   }
 
   getContractCodeUrl(address: string, chainId: string, fullMatch: boolean): string {
-    const url = new URL(`contracts/${fullMatch ? 'full_match' : 'partial_match'}/${chainId}/${address}`, this.explorerUrl)
+    const url = new URL(this.explorerUrl + `/contracts/${fullMatch ? 'full_match' : 'partial_match'}/${chainId}/${address}`)
     return url.href
   }
 }