WordPress 404 Images - Images not found after deleted from media
I am trying to develop the website to find images that have been deleted from the media library as they were not needed.
These Images that I have deleted have previously been on pages but have been replaced on the page now... but if you go to https://tools.pingdom.com/#!/ctzBfY/http://waggypetservices.co.uk you can see that some of the deleted images are still being called... this call also be seen in the page source.
My question is how can I find what is calling these images and stop it from calling the deleted images?
I have cleared my cache etc already and re-save permalinks.
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div class="row"
div class="col-xs bottom-xs flexbox image-group-bottom-3-img space-bottom-xs center-xs"img class="left-img shadow-large-black" data-size="500x300" src="http://waggypetservices.co.uk/wp-content/uploads/2017/11/cropped-dog_in_garden.jpg" / img class="center-img shadow-large-black" data-size="500x300" src="http://waggypetservices.co.uk/wp-content/uploads/2017/11/cropped-sleeping-golden-retrevier.jpg" / img class="right-img shadow-large-black" data-size="500x300" src="http://waggypetservices.co.uk/wp-content/uploads/2017/11/cropped-dog_walking_3-1.jpg" //div
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div id="content-12" style="background-color: #f5fafd;" data-label="Content" data-id="content-2" data-export-id="content-2" data-category="content" class="content-2 content-section content-section-spacing"
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div class="row middle-xs"
div class="col-sm-5 bg-image shadow-large-black" data-bg="image" style="background-image: url('http://waggypetservices.co.uk/wp-content/uploads/2017/11/dog-walking-image.jpg');"/div
div class="col-sm-7 full-col-left-padding full-col-right-padding"
div class="row"
div data-type="column" class="space-bottom-small content-title-col"
h2 class=""Dog Walking Chesterfield/h2
p class=""Waggy Walks Chesterfield offer private walks for pooches who prefer their own company as well as group walks for more sociable dogs.
At Waggy Walks we understand that every pet has different exercise requirements. These can vary significantly between individual animals and we know that every pet is unique and special. In fact, every animal is exceptional./p