diff --git a/app/logical/downloads/strategies/deviant_art.rb b/app/logical/downloads/strategies/deviant_art.rb
index 45e939faf..32ebe028c 100644
--- a/app/logical/downloads/strategies/deviant_art.rb
+++ b/app/logical/downloads/strategies/deviant_art.rb
@@ -12,7 +12,7 @@ module Downloads
 
     protected
       def rewrite_html_pages(url, headers)
-        if url =~ %r{^http://.+?\.deviantart\.com/art/}
+        if url =~ %r{^https?://.+?\.deviantart\.com/art/}
           source = ::Sources::Strategies::DeviantArt.new(url)
           source.get
           return [source.image_url, headers]
@@ -22,10 +22,10 @@ module Downloads
       end
 
       def rewrite_thumbnails(url, headers)
-        if url =~ %r{^(http://.+?\.deviantart\.net/.+?/)200H/}
+        if url =~ %r{^(https?://.+?\.deviantart\.net/.+?/)200H/}
           match = $1
           url.sub!(match + "200H/", match)
-        elsif url =~ %r{^(http://.+?\.deviantart\.net/.+?/)PRE/}
+        elsif url =~ %r{^(https?://.+?\.deviantart\.net/.+?/)PRE/}
           match = $1
           url.sub!(match + "PRE/", match)
         end
diff --git a/app/logical/downloads/strategies/twitpic.rb b/app/logical/downloads/strategies/twitpic.rb
index 4854da9cd..0939af09c 100644
--- a/app/logical/downloads/strategies/twitpic.rb
+++ b/app/logical/downloads/strategies/twitpic.rb
@@ -2,7 +2,7 @@ module Downloads
   module Strategies
     class Twitpic < Base
       def rewrite(url, headers)
-        if url =~ %r{http://twitpic\.com} || url =~ %r{^http://d3j5vwomefv46c\.cloudfront\.net}
+        if url =~ %r{https?://twitpic\.com} || url =~ %r{^https?://d3j5vwomefv46c\.cloudfront\.net}
           url, headers = rewrite_html_pages(url, headers)
           url, headers = rewrite_thumbnails(url, headers)
         end
@@ -14,7 +14,7 @@ module Downloads
       def rewrite_html_pages(url, headers)
         # example: http://twitpic.com/cpprns
 
-        if url =~ %r{http://twitpic\.com/([a-z0-9]+)$}
+        if url =~ %r{https?://twitpic\.com/([a-z0-9]+)$}
           id = $1
           url = "http://twitpic.com/show/full/#{id}"
           return [url, headers]
@@ -24,7 +24,7 @@ module Downloads
       end
 
       def rewrite_thumbnails(url, headers)
-        if url =~ %r{^http://d3j5vwomefv46c\.cloudfront\.net/photos/thumb/(\d+\..+)$}
+        if url =~ %r{^https?://d3j5vwomefv46c\.cloudfront\.net/photos/thumb/(\d+\..+)$}
           match = $1
           url.sub!("/thumb/" + match, "/large/" + match)
         end
diff --git a/app/logical/sources/strategies/deviant_art.rb b/app/logical/sources/strategies/deviant_art.rb
index cd7193a65..af2297898 100644
--- a/app/logical/sources/strategies/deviant_art.rb
+++ b/app/logical/sources/strategies/deviant_art.rb
@@ -58,9 +58,9 @@ module Sources
 
       def normalized_url
         @normalized_url ||= begin
-          if url =~ %r{\Ahttp://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-z0-9_]*_by_[a-z0-9_]+-d([a-z0-9]+)\.}i
+          if url =~ %r{\Ahttps?://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-z0-9_]*_by_[a-z0-9_]+-d([a-z0-9]+)\.}i
             "http://fav.me/d#{$1}"
-          elsif url =~ %r{\Ahttp://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-f0-9]+-d([a-z0-9]+)\.}i
+          elsif url =~ %r{\Ahttps?://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-f0-9]+-d([a-z0-9]+)\.}i
             "http://fav.me/d#{$1}"
           elsif url =~ %r{deviantart\.com/art/}
             url
diff --git a/app/models/post.rb b/app/models/post.rb
index 41b29cdbe..a71e45542 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -279,15 +279,15 @@ class Post < ActiveRecord::Base
       when %r{\Ahttp://lohas\.nicoseiga\.jp/priv/(\d+)\?e=\d+&h=[a-f0-9]+}i, %r{\Ahttp://lohas\.nicoseiga\.jp/priv/[a-f0-9]+/\d+/(\d+)}i
         "http://seiga.nicovideo.jp/seiga/im#{$1}"
 
-      when %r{\Ahttp://d3j5vwomefv46c\.cloudfront\.net/photos/large/(\d+)\.}i
+      when %r{\Ahttps?://d3j5vwomefv46c\.cloudfront\.net/photos/large/(\d+)\.}i
         base_10_id = $1.to_i
         base_36_id = base_10_id.to_s(36)
         "http://twitpic.com/#{base_36_id}"
 
-      when %r{\Ahttp://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-z0-9_]*_by_([a-z0-9_]+)-d([a-z0-9]+)\.}i
+      when %r{\Ahttps?://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-z0-9_]*_by_([a-z0-9_]+)-d([a-z0-9]+)\.}i
         "http://#{$1}.deviantart.com/gallery/#/d#{$2}"
 
-      when %r{\Ahttp://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-f0-9]+-d([a-z0-9]+)\.}i
+      when %r{\Ahttps?://(?:fc|th)\d{2}\.deviantart\.net/.+/[a-f0-9]+-d([a-z0-9]+)\.}i
         "http://deviantart.com/gallery/#/d#{$1}"
 
       when %r{\Ahttp://www\.karabako\.net/images(?:ub)?/karabako_(\d+)(?:_\d+)?\.}i
@@ -296,7 +296,7 @@ class Post < ActiveRecord::Base
       when %r{\Ahttp://p\.twpl\.jp/show/orig/([a-z0-9]+)}i
         "http://p.twipple.jp/#{$1}"
 
-      when %r{\Ahttp://pictures\.hentai-foundry\.com//[^/]/([^/]+)/(\d+)\.}i
+      when %r{\Ahttps?://pictures\.hentai-foundry\.com//[^/]/([^/]+)/(\d+)\.}i
         "http://www.hentai-foundry.com/pictures/user/#{$1}/#{$2}"
 
       else