Member Avatar for thosecars82

Hello there
I would like to ask you a question related to loading times.
I have noticed that the loading time for the images of this site () varies depending on the browser I use. The main difference comes when you use firefox which is quick and opera which is slow.
When I click on the different buttons of the upper horizontal pane, I can notice in opera that the images last a few seconds to download each time. Nevertheless in firefox, I cannot appreciate this time, may be because it's really quick.
Does anybody has any theory which explains why this difference in loading times might happen? Actually I would like to do something to fix this thing because I do not like that the images take so long to load in opera.
Thanks in advance
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Dani AI

Generated

Short, practical checklist and tests to track down why Opera looked slower than Firefox for those toolbar images. ’s suggestions pointed to multiple possible causes; the steps below show how to measure which one actually applies and which fixes will make a real difference.

Use the browser network inspector and a simple curl test to compare raw responses and timings (replace the URL with your image path):

# fetch headers using an Opera user-agent
curl -I -A "Opera/9.80 (Windows NT 6.1) Presto/2.12.388 Version/12.14" http://example.com/path/image.png

# measure total download time
curl -s -o /dev/null -w "%{time_total}\n" -A "Opera/9.80 (Windows NT 6.1) Presto/2.12.388 Version/12.14" http://example.com/path/image.png

If the network waterfall shows many sequential short requests or long TCP/handshake times, focus on connection and request overhead: enable persistent connections/keep-alive on the server, remove redirects for image URLs, and reduce the number of requests by combining small graphics into a sprite or inlining tiny icons as data URIs. Check response headers for Cache-Control/Expires and conditional requests (304s): proper long-lived caching for static images will remove repeated downloads. Also verify the server isn’t doing per-request processing (hotlink checks, image resizing on the fly) that could be slower for some user agents.

For perceived speed, try progressive JPEGs (renders earlier during download) and aggressive image optimization (lossless re-encode, appropriate format). On the client side, test with a clean profile or with security/proxy tools disabled briefly to rule out local interference. Make one change at a time and measure before/after so you know what actually helped.

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Member Avatar for MidiMagic

I can think of several reasons:

- Different browser communications settings.

- Different methods for the way the browser assembles the page.

- Different handshaking orders.

- Different methods of resizing images to fit.

- Different methods of displaying (maybe one waits until the entire image is downloaded before displaying any of it)

- Different internet cache settings.

- Fragmented internet cache on one browser.

- If both are installed on the same computer, the second one might get a less optimum cache space. It's even worse if both programs are open.

- Different virus checker settings or methods.

Member Avatar for thosecars82

I can think of several reasons:

- Different browser communications settings.

- Different methods for the way the browser assembles the page.

- Different handshaking orders.

- Different methods of resizing images to fit.

- Different methods of displaying (maybe one waits until the entire image is downloaded before displaying any of it)

- Different internet cache settings.

- Fragmented internet cache on one browser.

- If both are installed on the same computer, the second one might get a less optimum cache space. It's even worse if both programs are open.

- Different virus checker settings or methods.

Thanks
The problem was that I had opera with these settings:
Preferences->History->Check images->Always but I already change them to every 5 hours and it is working fine now.
Thanks again. Topic solved.

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