Otdfbt

I see no option to export a backup of the settings for a domain.

Maybe I should save the results of public DNS with dig but I would question whether a friend knows a better way.

Yes, it can be more friendly way. I suggest using cli53 tool, https://github.com/barnybug/cli53

After you setup it, just try

cli53 export --full sciworth.com

And you get the export zone in bind format.

No need of additional software installations. You need only awscli.

Here is what I just wrote. It is simple and works like charm.

#!/bin/bash -e
#
# Author: Peycho Dimitrov
#
# DESCRIPTION
#
# Create full backup of all hosted Route53 zones / domains in your account.
#
# REQUIREMENTS
#
# Available s3 bucket (where your json files will be saved)
# awscli (with cofigured credentials or IAM role)
# gzip
# awk
#
####################################

# CONFIGURATION

region="us-east-1" # Your aws region
b_route53_tmp="/tmp/r53_backup" # Your temp directory
b_route53_bucket="s3://my-backups/route53" # Your backup folder in s3.

# END OF CONFIGURATION

# Do not edit here if you don't know what your're doing! #

mkdir -p $b_route53_tmp
echo "$(date) Backup all Route53 zones and resource records."
p_aws="$(which aws) --region $region"
r53_zones=$($p_aws route53 list-hosted-zones --query '[HostedZones[*].[Id, Name]]' --output text | awk -F'/' 'print $3')
if [ ! -z "$r53_zones" ]; then
 while read route; do
 zone=$(echo "$route" | awk 'print $1')
 domain=$(echo "$route" | awk 'print $2')
 echo "Processing $zone / $domain"
 $p_aws route53 list-resource-record-sets --hosted-zone-id "$zone" --output json > "$b_route53_tmp"/$(date +%Y%m%d%H%M%S)-"$zone"-"$domain"backup.json
 done <<<"$r53_zones"

 echo "Archive json files."
 gzip "$b_route53_tmp"/*backup.json
 echo "Backup $zone / $domain data to $b_route53_bucket/$(date +%Y)/$(date +%m)/$(date +%d)/"
 $p_aws s3 cp "$b_route53_tmp"/ $b_route53_bucket/$(date +%Y)/$(date +%m)/$(date +%d)/ --exclude "*" --include "*.gz" --recursive
fi

echo "$(date) Done!"

If you want to export to bind format, you can use this script:

#!/bin/bash

zonename=$1
hostedzoneid=$(aws route53 list-hosted-zones | jq -r ".HostedZones[] | select(.Name == "$zonename.") | .Id" | cut -d'/' -f3)
aws route53 list-resource-record-sets --hosted-zone-id $hostedzoneid --output json | jq -jr '.ResourceRecordSets[] | "(.Name) t(.TTL) t(.Type) t(.ResourceRecords[].Value)n"'

To export a hosted zone in AWS Route 53, follow these steps (let say you are using example.com hosted zone):

Step 1: Installation – pip install route53-transfer

Step 2: Backup the zone to a CSV file:

route53-transfer dump example.com backup.csv

Use STDOUT instead of a file

route53-transfer dump example.com –

Step 3: Restore a zone:

route53-transfer load example.com backup.csv

Use - to load from STDIN instead

Migrate between accounts:

Use command line switches for overriding the access and secret keys:

route53-transfer --access-key-id=ACCOUNT1 --secret-key=SECRET dump example.com
route53-transfer --access-key-id=ACCOUNT2 --secret-key=SECRET load example.com

If you are working with private zones, use –private to distinguish private domains:

route53-transfer --private dump example.com example-private.csv
route53-transfer dump example.com example-public.csv

You can sign up for Cloudflare.com and add a free website.

Cloudflare will scan your DNS as part of its onboarding.

After import (or maybe during), in "Advanced" below the DNS records, there is an Export DNS file button.