. The present invention further provides surface-postcrosslinked water-absorbent polymer particles having a centrifuge retention capacity (CRC) from 00 to 00 g/g, an absorption under high load (AUHL) from 00 to 00 g/g, a level of extractable constituents of less than 00% by weight, and a porosity from 00 to 00%. The present invention further provides surface-postcrosslinked water-absorbent polymer particles having a total liquid uptake of Y>−000×ln(X)+0000 wherein Y [g] is the total liquid uptake and X [g/g] is the centrifuge retention capacity, wherein the centrifuge retention capacity is at least 00 g/g and the liquid uptake is at least 00 g. The present invention further provides surface-postcrosslinked water-absorbent polymer particles having a change of characteristic swelling time of less than 0.0 and a centrifuge retention capacity of at least 00 g/g, wherein the change of characteristic swelling time is Z<(τ0.0−τ0.0)/τ0.0 wherein Z is the change of characteristic swelling time, τ0.0 is the characteristic swelling time under a pressure of 0.0 psi (0.0 g/cm0) and τ0.0 is the characteristic swelling time under a pressure of 0.0 psi (00.0 g/cm0). The present invention further provides fluid-absorbent articles