Increase the website’s text scale
Open the webpage in Safari and tap the Page Menu button beside the search field. Choose Page Zoom, then use the larger A to increase or the smaller A to decrease the scale.
Apple documents a 100% indication when returning to the default scale. Menu wording can vary with the iOS version, so use the linked guide’s version selector if your interface differs.
Try Reader when the page supports it
The Page Menu can offer Show Reader for eligible pages. Reader provides a streamlined reading view; it is separate from changing the website’s own source styles.
A page without Reader support still has its normal browsing layout. Do not assume that every interactive page can be converted into an article view.
Decide whether the problem is system-wide
If supported text across many apps is too small, use iPhone’s accessibility text controls instead of changing each website individually. That is a different scope from a Safari page setting.
Compare a long article and a page with forms after changing the scale, so enlarged text remains usable in the tasks you actually perform.
Keep reading and authoring distinct
Read iPhone text settings for the wider device workflow. Website font choices explains the author’s design decisions; those are not a font-installation control for Safari visitors.
Your questions, answered.
Does Page Zoom install a different font?
No. It changes the page’s viewing scale.
Why is Reader missing on some pages?
Reader is offered only where Safari supports that streamlined reading view.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.