Should you followed the methods higher than now you ought to be capable to develop and validate the correctness of BIP-39 seeds your self (with nominal support from tools like binary to hex to decimal converters). Standard recovery phrases use a specific list of 2048 words following the BIP39 standard https://socialbaskets.com/story4359221/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting