Slow submit: TTFB 7-30+s for /wp-json/contact-form-7/v1/contact-forms/*/feedback

  • Resolved jan.mazanek

    (@janmazanek)


    3 years, 10 months ago

    Hi,

    TLTR: if Clean Talk is active, Contact Form 7 submission response time increase from couple seconds to 10+ seconds and sometimes event timeouts after 30 seconds.
    —

    Last weeks I see repeated submisions of contact forms. I performed some tests in development environment and found.

    I tried to submit an empty form. The response was 10-30 seconds.

    I disabled plugins W3 Total Cache and iThemes Security, but the response was still 10-30s.

    I checked in WebDeveloper tools, that it was caused by waiting for the first byte of the response (TTFB) when calling /wp-json/contact-form-7/v1/contact-forms/…../feedback.

    When I deactivated Anti-Spam by CleanTalk and the TTFB reduced to 300-400ms.

    When I reactivated Anti-Spam by CleanTalk, the TTFB was again 7-30 seconds or HTTP header 503 (Service unavailable).

    I tried multiple combinations of turning on/off W3 Total Cache, iThemes Security and Anti-Spam by CleanTalk: The only relevant factor is, whether Anti-Spam by CleanTalk is active.
    —
    Please, will you improve the speed of your services?

    Used versions:
    * WordPress 5.6
    * Theme: Avada v7.2.1
    * Contact Form 7: Version 5.3.2
    * Anti-Spam by CleanTalk: Version 5.151.2

    * W3 Total Cache: Version 2.0.1
    * iThemes Security: Version 7.9.0

Viewing 5 replies - 1 through 5 (of 5 total)
  • Plugin Support amagsumov

    (@amagsumov)

    Hello, @janmazanek

    We are currently investigating this issue. We’ll contact you in a few hours.

    We are sorry for the inconveniences caused.

    P.S. Could you, please test the forms once again. Doest the issue still persist?

    Best regards.

    Thread Starter jan.mazanek

    (@janmazanek)

    Hello,
    I tested the speed again. It is signifficantly better. Thank you.

    At this moment TTFB were:
    1,09s,
    0,7s
    0,94s
    0,9s
    1,3s
    2,1s
    0,78

    Plugin Support amagsumov

    (@amagsumov)

    @janmazanek,

    It looks like there were some temporarly connection issues.

    Please, let us know if the issue persists.

    Thank you.

    Thread Starter jan.mazanek

    (@janmazanek)

    Please, could you create some monitoring, that will inform you about such a issues?

    I’m closing the issue, but feel free to reopen it.

    Have a nice day,

    Jan

    Plugin Support amagsumov

    (@amagsumov)

    We’ll think how can we prevent such situations in future.

    Sorry for the inconveniences.

    Best regards.

Viewing 5 replies - 1 through 5 (of 5 total)
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