Website performance

hello, i'm having a problem with the website speed ( i'm using wordpress ), i used google pagespeed Insights and he shows me that i should compress some pictures to gain speed .
so i opened the ftp client and went to every picture mentionned in the repport . exp this picture: wp-content/uploads/2015/05/urban321.jpg?resize=100%2C75

i compressed every image and reuploaded them the the same folder, after that i did another test to see how much speed i gained but without succes i get the same result and the same pics !
i installed several plugins like smush it and others but without a big help ! most of them are working just whene you upload your images and not after that .

so if someone knows how can i solve my problem i'll be glad .
thank you ^^

darko1x said:

i used google pagespeed Insights and he shows me that i should compress some pictures to gain speed

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Yeh that google pagespeed Insights guy is a great guy. Really helpful dude, you should ask him.

lucasbraydon said:

Yeh that google pagespeed Insights guy is a great guy. Really helpful dude, you should ask him.

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sorry but if you don't fee like helping don't bother yourself ^^ and i even used other website speed test or performance test and got the same results

Which tool you used to compress the images and was the results really the same​ like before, or just still not "perfect"?

AdludumAndre said:

Which tool you used to compress the images and was the results really the same​ like before, or just still not "perfect"?

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Tools like below will help you to compress image without their quality loss:

1. JPEGMini
2. Shrink O? Matic
3. Riot
4. Image Optimizer
5. Trimage
6. PunnyPNG
7. JPEG Optimizer
8. ImageOptim
9. Shrink Pictures
10. JPEG Reducer

thank you for the answers, i think that i'm not clear enaugh xD . So what i did is compressed the pics with this tool Caesium and even photoshop and the pics are good compressed ( i double checked them ). what i mean with the same result is the report gives me the same links and sizes as before i reupload the folders .
wp-content/uploads/2015/05/urban321.jpg?resize=100%2C75
wp-content/uploads/2015/05/urban321.jpg?resize=180%2C135
in the ftp i went to this folder wp-content/uploads/2015/05 and picked the image urban321.jpg and compressed it and reuploaded, then re-test = same link again

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