Acceptance in 48 Hours
You submitted on Tuesday and were accepted on Thursday. That is flattering, it is fast, and it is the clearest single signal available. A related operational resource is available this page .
Real review takes weeks because of what it involves, and understanding the mechanics makes the signal unmistakable. For a second perspective, consult DOI Foundation .
Reviewed August 9, 2026.
What review actually requires
Assigning reviewers. Somebody matches your submission to two or three people with relevant expertise who are not conflicted.
Those people are volunteers with jobs. They read in evenings, over a window measured in weeks.
Their scores are reconciled. Disagreements need a third opinion or a discussion.
And the programme is assembled, which is a separate task from scoring — a schedule has slots, tracks and balance constraints.
Two days is not enough for step one. A conference that accepted in 48 hours did not do any of it, whatever the acceptance email describes.
What a normal timeline looks like
Four to twelve weeks from deadline to notification, for most conferences of any size.
Longer for large events, where the review load is thousands of submissions.
And notification on a stated date, announced in advance, rather than individually as submissions arrive — because the decisions are made together.
Rolling instant acceptance is the tell. A conference deciding submissions one at a time as they arrive is not assembling a programme; it is processing registrations.
What usually accompanies it
Fast acceptance rarely travels alone.
A payment deadline shortly after. The acceptance exists to trigger the fee, so the interval between them is short.
No reviewer comments, or comments so generic they fit any paper. Real review produces specific objections.
An invitation to submit to an associated journal, frequently for an additional charge.
And no rejection rate published anywhere, because there is not one.
The legitimate exceptions
Being precise, because the signal is strong and not absolute.
Posters and lightning talks are sometimes accepted quickly and lightly reviewed, and that is disclosed.
Invited talks bypass review by definition — but you were invited by somebody who knows your work, not by a form letter.
Industry conferences frequently select on abstracts alone, faster than academic peer review, which is a different model rather than a defective one.
The distinguishing question: was the speed disclosed in advance? A conference that says "abstracts reviewed by the programme chairs within two weeks" is telling you its model. One that implies peer review and delivers a 48-hour acceptance is not.
Why this signal survived automation
Most red flags degraded as fabrication got cheaper. Fake biographies, invented committees and polished testimonials are now generated at scale, so appearance stopped being evidence.
Timing did not degrade, because it is not a claim on a page — it is an event with a duration, and the duration is what review costs. A predatory operation cannot fake three weeks of volunteer reading; it can only wait, and waiting conflicts with the business model.
That makes speed one of the few signals that got stronger as everything else got weaker.
The short version
- Review needs reviewer assignment, weeks of volunteer reading, score reconciliation and programme assembly — 48 hours does not cover step one
- Normal is four to twelve weeks, with notification on a stated date rather than individually as submissions arrive
- Fast acceptance usually travels with a near payment deadline, generic or absent comments, a journal upsell, and no published rejection rate
- Legitimate exceptions exist — posters, invited talks, industry events selecting on abstracts — and they disclose the model in advance
- The question is whether the speed was disclosed, not whether it was fast
- Timing is one of the few signals that strengthened as fabrication got cheaper, because a duration cannot be faked