Performance / ssl negociation

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1

My domain is:

I ran this command:
Test on pingdom or webpagetest

It produced this output:
SSL Negotiation: from 281 ms to 800ms

My web server is (include version):
Apache 2.2

Dear,

I migrate to SSL with letsencrypt certificate. but i got performance issue.

When I'm testing with pingdom or webpagetest, the ssl negociation is always very long, between 200 to 800ms.

So for example I can have:

Request Start: 0.739 s
DNS Lookup: 60 ms
Initial Connection: 35 ms
SSL Negotiation: 638 ms
Time to First Byte: 264 ms
Content Download: 15 ms

So As you could see the ssl negociation is the worst part.
Is there any thing I can do?

2

You may first consider an upgrade of Apache. The 2.2 versions are no longer supported.

3

And you think this could affect in any way the performance of ssl negociation?

4

Many things can affect performance, you have to figure out, which. As a start, try upgrading Apache.

5

Do those sites also give verbose information about the SSL negotiation? E.g., detaild about the client and server timings for example, which could matter. In the negotiation, the client also has a rather big role.

Your RSA keypair is 2048 bits, which is good when talking about speed. If your keypair was 4096 bits, it would even take longer.

6

Where could I get Those verbose information.

About client, i know and that’s why i check through Pingdom and WebpageTest.
And it’s when i compare to my competitor that, mine seems slower

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