Pasting the following text into the External links section of an article
{{subst:No more links}}
or
{{subst:nml}}
will show the following text (visible only while editing, and with month and year substituted):
{{Prone to spam|date={{safesubst:CURRENTMONTHNAME}} {{safesubst:CURRENTYEAR}}}}<!-- {{No more links}}Please be cautious when adding more external links.Wikipedia is not a collection of links and should not be used for advertising. Excessive or inappropriate links will be removed. See [[Wikipedia:External links]] and [[Wikipedia:Spam]] for details.If there are already suitable links, propose additions or replacements onthe article's talk page.-->