Xenforo image optimization

upgrade81 · Feb 23, 2018

Hello to all

Do you think there is a way to optimize Xenforo images with the optimise-images tool and maybe even serve webp? Without using pagespeed ...

eva2000 · Feb 23, 2018

Probably if someone smart enough with php coding and xenforo knowledge does it. But that ain't me heh. IIRC, there's a Xenforo addon for optimising images though.

upgrade81 · Feb 23, 2018

there is a problem with pagespeed that happened to me in the past.

the images that generates example:
forum / images / smilies / xdimokchan.png.pagespeed.ic.D1YXJf6_vC.webp

are indexed in some way and when you stop using pagespeed you have a lot of 404 errors that affect even after several years.

eva2000 · Feb 23, 2018

index in google ? is it really a concern google indexes images ? only pages should of concern

google should crawl pages and update your site, i haven't heard of google indexing images and not updating in years ?

any examples of 404 that are indexed still after a long time ?

when you disable ngx_pagespeed in centmin mod, images revert back to original format/path so google should index that

upgrade81 · Feb 24, 2018

Yes, it's all true, how can I lie?
on this domain I do not use pagespeed for at least 3 years.

Code (Text):

2018/02/23 14:46:02 [error] 7852#7852: *113270 open() "/home/nginx/domains/domainxxx.it/public/wp-content/uploads/2014/09/Renault-Eolab-consumo-1-litro-100-km-640x426.jpg.pagespeed.ce.1B2M2Y8Asg.jpg" failed (2: No such file or directory), client: 66.249.88.146, server: www.domainxxx.it, request: "GET /wp-content/uploads/2014/09/Renault-Eolab-consumo-1-litro-100-km-640x426.jpg.pagespeed.ce.1B2M2Y8Asg.jpg HTTP/1.1", host: "www.domainxxx.it"

But I also get errors like this:
Autoptimize plugin I have not used it for 4 months ...

Code (Text):

2018/02/23 16:23:11 [error] 7853#7853: *131925 access forbidden by rule, client: 66.249.76.127, server: www.domainxxx.it, request: "GET /wp-content/cache/autoptimize/autoptimize_1de4458fc349615fe3efdd21b2478ee9.php HTTP/1.1", host: "www.domainxxx.it", referrer: "http://www.domainxxx.it/7911-il-nuovo-spot-della-famiglia-fiat-500-negli-usa.html"

Code (Text):

2018/02/23 16:39:57 [error] 7852#7852: *135058 open() "/home/nginx/domains/domaixxx.it/public/wp-content/uploads/essb_cache/28991c8e003bf2c57a447205a74f9ec9.css" failed (2: No such file or directory), client: 207.241.232.40, server: www.domainxxx.it, request: "GET /wp-content/uploads/essb_cache/28991c8e003bf2c57a447205a74f9ec9.css HTTP/1.0", host: "www.domainxxx.it", referrer: "http://www.domainxxx.it/5757-maserati-vendite-crescita-del-136-nel-2014.html"

eva2000 · Feb 24, 2018

but are they coming from google indexed referrals ? where are they being referenced ?

most likely explanation is your site users or wordpress admin copy and pasted a url link to a pagespeed optimisied .webp url into a comment or wp post so it's hardcoded into the html of the post or comment.

eva2000 · Feb 24, 2018

oh 3rd error ip is a crawler 207.241.232.40 IP Address Details - ipinfo.io so it seems it's a url link referenced either on your site or someone's site i.e. those mirror copied sites etc that spring up. There is no hard to your site either way if they're 404'd as long as your site works with pagespeed disabled

upgrade81 · Feb 24, 2018

this is precisely what I would like to avoid.
any user can copy the link to an image that could then change at the first image update or in any case after 1 year based on what the pagespeed guide says with pagespeed enabled extend_cache.

this for me is a big limitation especially for a forum with photos of cars and related, which even after years can be very current or in any case serve for some tutorials.

that's all

PageSpeed uses the original time-to-live cache (TTL), in this case 300 seconds, to periodically re-examine the content to see if it's changed. If it changes, then the hash of the content will also change. Thus it's safe to serve the hashed URL with a long timeout-PageSpeed uses one year.

If the site owners change the logo, then PageSpeed will notice within 5 minutes and begin serving a different URL to users. But if the content does not change, then the hash will not change, and the copy will be valid and reachable.

They are still in complete control of how they can be deployed to the site, but this does not affect the effectiveness of the browser cache. Decreasing the TTL only affects how often PageSpeed will need to re-examine the resource.

Cache extension is built into other PageSpeed filters as well. All filters that rewrite resources include a content-hash in the generated URL, and serves the resource with a 1-year TTL. Cache of lifetimes for all resources that are not optimized.
Click to expand...

eva2000 · Feb 24, 2018

Guess ngx_pagespeed default rewritten optimised urls isn't suited for you then. You probably need to look at PageSpeed In-Place Resource Optimisation (IPRO) which optimises but keeps the original url name PageSpeed System Integration but it's tricky. It's default enabled but Centmin Mod ngx_pagespeed disables it by default as it's tricky to implement sometimes.

Normally PageSpeed rewrites a resource such as an image by finding its URL on your page, fetching and optimizing the data in the background, and then replacing that URL by an optimized pagespeed URL. But what about resources that are loaded by JavaScript code? And what about links to your images from pages outside your domain? In-Place Resource Optimization (IPRO) will optimize the content of a resource that's requested using the original (non-pagespeed) URL, ensuring you are serving optimized content even when that content isn't explicitly linked in your html. This should be especially helpful for sites with slide shows that use JavaScript to load images in the background;
Click to expand...

Some sites employ JavaScript that is sensitive to the original resource URL syntax and won't work with PageSpeed's altered resource URLs. You can choose to preserve the URLs of your resources; these will still be rewritten by IPRO, but they won't be replaced by a pagespeed URL. This is especially useful as an "optimization is on by default" setting for hosting providers and optimizing forward proxies — cases where site-specific settings to blacklist URLs are impractical.
Click to expand...

Personally, I don't mind about 404 images versus the bandwidth savings and page load speed your get from ngx_pagespeed. For large sites that could be 100s of dollars saved and a much better experience for visitors that access your site - leading to increased engagement and activity on your site! Compared to those visitors who directly access a linked and outdated old broken 404 image who won't add a single cent to your advertising revenues etc.

upgrade81 said: ↑

any user can copy the link to an image that could then change at the first image update or in any case after 1 year based on what the pagespeed guide says with pagespeed enabled extend_cache.
Click to expand...

also you can use pagespeed disallow directives to exclude some important images for pagespeed rewrite/optimisations and leave site images themselves optimised.

upgrade81 · Mar 24, 2018

Hi here I am back to the attack.

Let's say I give up the webp, if I use the script directly in the Attachments directory (as an attachment) it should go ... what do you think?

The only problem is that the organization of attachments does not seem to make sense.

eva2000 · Mar 24, 2018

won't help you need to update the references in xenforo database too which a script can't do by itself.

upgrade81 · Mar 24, 2018

cabbage, this XenForo complex...

upgrade81 · Mar 24, 2018

I'll buy that hateful Addon but that without Kraken.

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