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.htaccess for SEOs - A presentation by Roxana Stingu
- 1. @RoxanaStingu > .htaccess for SEOs Roxana Stingu // Alamy SLIDESHARE.NET/RoxanaStingu @RoxanaStingu
- 6. @RoxanaStingu > How does it help with SEO? REDIRECTS PAGE SPEED CRAWLING and INDEXING
- 7. @RoxanaStingu .htaccess is very powerful – even a missing space can result in server malfunction. DON’T make .htaccess changes without a proper back-up! > Disclaimer
- 8. @RoxanaStingu WHAT IS THE .HTACCESS FILE?
- 12. @RoxanaStingu
- 14. @RoxanaStingu > Why still use .htaccess? SHARED HOSTING DEVELOPERS
- 15. @RoxanaStingu > Recommendations AVOID IT IF YOU CAN GET FRIENDLY WITH IT IF YOU CAN’T
- 17. @RoxanaStingu > .htaccess speed dating FULL NAME Hyper Text Access JOB Affects the folder it’s placed in ORIENTATION Execution order is top to bottom (mostly) LANGUAGES Directives
- 19. @RoxanaStingu
- 21. @RoxanaStingu > Main redirect modules mod_alias mod_rewrite
- 22. @RoxanaStingu > mod_alias # Redirect [status] [URL-path] URL ### Example Redirect 301 "/old-url.html" "/new-url.html“ # RedirectMatch [status] regex URL ### Example RedirectMatch 301 "(.*).pdf$" "$1.html" .htaccess
- 23. @RoxanaStingu > mod_rewrite ### Example RewriteEngine on RewriteCond %{HTTP_HOST} ^example.com [NC] RewriteRule ^(.*)$ https://www.example.com/$1 [L,R=301] RewriteEngine off .htaccess
- 24. @RoxanaStingu > RewriteRule syntax RewriteRule Pattern Substitution [FLAGS] Reg. expr. checked against the requested URI Any of the following: - modification to the part matched by the Pattern - absolute path to a file - full URL to redirect to - a dash “-” to do nothing Optional - All kinds of special actions
- 25. @RoxanaStingu > Rewrite flags G | Gone N | Next NC | NoCase QSA | QSAppend QSD | QSDiscard R | Redirect
- 28. @RoxanaStingu > Redirect chains 0 0.5 1 1.5 2 2.5 1 2 3 4 5 6 7 8 TimeinS # of redirects before the final destination Redirect Chains Compared to Speed Series2 Series3 Series4
- 29. @RoxanaStingu Indexing Google stops after [3 to 5] redirects Crawling Wastes crawl budget Speed Each step slows down the time it takes for a page to load
- 30. @RoxanaStingu Update redirect destinations /old-url.html should 301 to /new-url.html https://www.website.com/old-url.html HTTP STATUS 301 /some-other-page.html 301
- 31. @RoxanaStingu > Fixing redirect chains PROBLEM A 301 B 301 C IMPLEMENTATION A 301 to B IMPLEMENTATION B 301 C FIX Change A 301 to B with A 301 C
- 32. @RoxanaStingu > Duplicate content 1. http://example.com/blog 2. http://example.com/blog/ 3. http://www.example.com/blog 4. http://www.example.com/blog/ https://example.com/blog https://example.com/blog/ https://www.example.com/blog https://www.example.com/blog/
- 33. @RoxanaStingu > Duplicate content ### Turn on rewrite engine RewriteEngine on ### Force WWW RewriteCond %{HTTP_HOST} ^example.com [NC] RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301,NC] ### Force HTTPS RewriteCond %{HTTPS} !on RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301] ### Remove trailing slash RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)/$ http://www.example.com/$1 [L,R=301] .htaccess
- 34. @RoxanaStingu > Duplicate content Request http://example.com/folder/ Step 1 http://www.example.com/folder/ Step 2 https://www.example.com/folder/ Step 3 http://www.example.com/folder Step 4 https://www.example.com/folder
- 35. @RoxanaStingu #### Force HTTPS://WWW and remove trailing / from files #### ## Turn on rewrite engine RewriteEngine on # Force HTTPS and WWW RewriteCond %{HTTP_HOST} !^www.(.*)$ [OR,NC] RewriteCond %{https} off RewriteRule ^(.*)$ https://www.example.com/$1/ [R=301,L] # Remove trailing slash from non-filepath urls RewriteCond %{REQUEST_URI} /(.+)/$ RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^https://www.example.com/%1 [R=301,L] # Include trailing slash on directory RewriteCond %{REQUEST_URI} !(.+)/$ RewriteCond %{REQUEST_FILENAME} -d RewriteRule ^(.+)$ https://www.example.com/$1/ [R=301,L] .htaccess
- 36. @RoxanaStingu > Duplicate content Request http://example.com/folder Step 1 https://www.example.com/folder/ Request https://www.example.com/folder Step 1 https://www.example.com/folder/
- 38. @RoxanaStingu > Remove file extensions
- 39. @RoxanaStingu > Consolidate index pages
- 44. @RoxanaStingu 1 2 3 4 5 6 7 8 9 10 11 12 13 14 4.6 4.8 5 5.2 5.4 5.6 5.8 6 0 100 200 300 400 500 600 700 800 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PageLoadTime(s) TTFB(ms) .htaccess no. of redirects Impact of .htaccess rules on page load time Series2 Series3 Thanks to SEOMike
- 45. @RoxanaStingu 0 500 1,000 1,500 2,000 2,500 3,000 1 2 3 4 5 6 7 TTFBinMS # of lines in .htaccess TTFB of a 280 byte .txt file Thanks to Simon Thompson
- 46. @RoxanaStingu COMPOUND COMPOUNDED EFFECT DUE TO MULTIPLE RESOURCES
- 47. @RoxanaStingu > File size issue? 1M Redirect Directives 58.9MB 4.247s TTFB 1M Commented Lines 59.9MB 0.393s TTFB
- 50. @RoxanaStingu > Soft 404 Errors
- 53. @RoxanaStingu > Leverage Browser caching Cache control Expires headers
- 54. @RoxanaStingu # Set the cache-control max-age # 1 year <FilesMatch ".(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$"> Header set Cache-Control "max-age=31449600, public" </FilesMatch> # 2 DAYS <FilesMatch ".(xml|txt)$"> Header set Cache-Control "max-age=172800, public, must-revalidate" </FilesMatch> ### Set Expires Headers <FilesMatch ".(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$"> Header set Expires "Thu, 15 Jan 2015 20:00:00 GMT" </FilesMatch> .htaccess
- 55. @RoxanaStingu > Enable Keep Alive .htaccess # TN START ENABLE KEEP ALIVE <ifModule mod_headers.c> Header set Connection keep-alive </ifModule> # TN END ENABLE KEEP ALIVE
- 56. @RoxanaStingu > Deflate compression .htaccess # TN START DEFLATE COMPRESSION <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE "application/atom+xml" "application/javascript" "application/json" "application/ld+json" "application/manifest+json" "application/rdf+xml" "application/rss+xml" "application/schema+json" "application/vnd.geo+json" "application/vnd.ms-fontobject" "text/xml" </IfModule> # END DEFLATE COMPRESSION
- 57. @RoxanaStingu > Gzip compression .htaccess # TN START GZIP COMPRESSION <IfModule mod_gzip.c> mod_gzip_on Yes mod_gzip_dechunk Yes mod_gzip_item_include file .(html?|txt|css|js|php|pl)$ mod_gzip_item_include handler ^cgi-script$ mod_gzip_item_include mime ^text/.* mod_gzip_item_include mime ^application/x-javascript.* mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.* </IfModule> # TN END GZIP COMPRESSION
- 58. @RoxanaStingu > Disable Image Hotlinking .htaccess # TN – DISABLE IMAGE HOTLINKIING START RewriteEngine on RewriteCond %{HTTP_REFERER} !^$ RewriteCond %{HTTP_REFERER} !^http(s)?://(www.)?mywebsite.com [NC] RewriteCond %{HTTP_REFERER} !^http(s)?://(www.)?google.com [NC] RewriteRule .(jpeg|gif)$ https://www.mywebsite.com/stop-hotlinking.gif [NC,F,L] # TN – DISABLE IMAGE HOTLINKIING END
- 59. @RoxanaStingu > mod_pagespeed .htaccess # TN – ENABLE MOD PAGESPEED START # COMBINE CSS, COMPRESS IMAGES, REMOVE HTML WHITE SPACE AND COMMENTS <IfModule pagespeed_module> ModPagespeed on ModPagespeedEnableFilters rewrite_css,combine_css ModPagespeedEnableFilters recompress_images ModPagespeedEnableFilters convert_png_to_jpeg,convert_jpeg_to_webp ModPagespeedEnableFilters collapse_whitespace,remove_comments </IfModule> # TN – ENABLE MOD PAGESPEED END
- 61. @RoxanaStingu > Canonical tags ### Add a canonical tag to a non-HTML resource <Files white-paper.pdf> Header add Link '<https://www.example.com/white-paper-download.html>; rel="canonical"' </Files> .htaccess
- 62. @RoxanaStingu > Indexing directives ### Add a meta robots tag to a non-HTML resource <Files white-paper.pdf> Header add X-robots-tag "noindex, noarchive, nosnippet" </Files> ### Add meta robots tags to non-HTML resources by type <Files ".(docx|pdf)$"> Header add X-robots-tag "noindex, noarchive, nosnippet" </Files> .htaccess
- 64. @RoxanaStingu > Getting to grips with .htaccess danielmorell.com/guides/htaccess-seo .htaccess for SEO